[Event "Odessa"]
[Site "Odessa"]
[Date "1946.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Efim Geller"]
[Black "Boris Markovich Kogan"]
[ECO "B53"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "67"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Bxc6 Bxc6
7.Nc3 Nf6 8.Bg5 e6 9.O-O Be7 10.Rad1 O-O 11.Rfe1 Qc7 12.h3
Rfd8 13.Nh2 b5 14.Rd3 a5 15.Rf3 b4 16.Rxf6 bxc3 17.Ng4 h5
18.Bh6 e5 19.Qe3 hxg4 20.Bxg7 Kxg7 21.Qh6+ Kg8 22.Rf5 Be8
23.Rh5 f6 24.Rh4 Qc8 25.Qh8+ Kf7 26.Rh7+ Ke6 27.Qg7 Kd7 28.Re3
cxb2 29.Qxe7+ Kc6 30.Rc3+ Kb6 31.Rxc8 b1=Q+ 32.Kh2 Rd7 33.Qxe8
Rxh7 34.Qc6+ 1-0

[Event "Ch URS (1/2 final)"]
[Site "Kiev (Ukraine)"]
[Date "1950.??.??"]
[EventDate "?"]
[Round "1"]
[Result "0-1"]
[White "Boris Markovich Kogan"]
[Black "Viacheslav Ragozin"]
[ECO "C81"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "68"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3
d5 8.dxe5 Be6 9.Qe2 Be7 10.a4 b4 11.c3 Nc5 12.Bc2 Bg4 13.Nbd2
O-O 14.Nb3 Bxf3 15.Qxf3 Nxe5 16.Qf5 Ng6 17.cxb4 Nxb3 18.Bxb3
c6 19.Bd2 Rb8 20.b5 axb5 21.axb5 Rxb5 22.Ba4 Rxb2 23.Bc3 Re2
24.Bxc6 d4 25.Qd3 Re6 26.Ba5 Qd6 27.Be4 Ne5 28.Qc2 d3 29.Qc7
Qd4 30.Qb7 Bc5 31.Qd5 Ng4 32.Rae1 Nxf2 33.Qxd4 Bxd4 34.Rxf2
Rfe8 0-1

[Event "UKR-ch"]
[Site "Kiev"]
[Date "1963.??.??"]
[EventDate "?"]
[Round "13"]
[Result "1-0"]
[White "Igor V Platonov"]
[Black "Boris Markovich Kogan"]
[ECO "B47"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "131"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Qc7 6.f4 a6 7.Be3
d6 8.Qf3 Nf6 9.O-O-O Be7 10.g4 Nxd4 11.Rxd4 d5 12.exd5 Nxd5
13.Rxd5 exd5 14.Nxd5 Qd6 15.f5 O-O 16.g5 Rd8 17.Bg2 Bf8 18.Rd1
Kh8 19.Nb6 Qxd1+ 20.Qxd1 Rxd1+ 21.Kxd1 Rb8 22.Bf4 Bc5 23.Bxb8
Bxb6 24.Bf4 f6 25.gxf6 gxf6 26.Kd2 Kg7 27.c3 Kf7 28.Be4 Bg1
29.Kd3 Ke7 30.b4 b5 31.c4 bxc4+ 32.Kxc4 Bd7 33.Kb3 Kd8 34.a4
Kc8 35.Bd6 h5 36.Bg3 Be3 37.Bd3 Kb7 38.Be4+ Kc8 39.h3 Bb6
40.Be1 Bd8 41.Bc3 Kc7 42.Bd3 Bc8 43.h4 Kd6 44.Be4 Ke7 45.Bd4
Bc7 46.Bf2 Bd7 47.Bd3 Bc8 48.Kc4 Bb7 49.Kc5 Kd7 50.Bc4 Be4
51.Bxa6 Bd6+ 52.Kc4 Bxf5 53.Bb5+ Kc7 54.Be8 Bg4 55.a5 Be2+
56.Kc3 f5 57.b5 Bf3 58.a6 f4 59.a7 Kb7 60.Bc6+ Bxc6 61.bxc6+
Ka8 62.Kd3 f3 63.Ke4 Bc7 64.Kxf3 Bb6 65.Ke4 Bc5 66.c7 1-0

[Event "UKR-ch"]
[Site "Kiev"]
[Date "1963.??.??"]
[EventDate "?"]
[Round "15"]
[Result "1/2-1/2"]
[White "Zamikhovsky"]
[Black "Boris Markovich Kogan"]
[ECO "A38"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "132"]

1.c4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O c5 6.Nc3 Nc6 7.d3
d5 8.cxd5 Nxd5 9.Bd2 e6 10.Qc1 b6 11.Bh6 Bb7 12.Bxg7 Kxg7
13.Rd1 Rc8 14.Qd2 Qd7 15.e4 Nxc3 16.Qxc3+ Kg8 17.Rd2 Rfd8
18.Rad1 Nd4 19.Nxd4 Qxd4 20.Qxd4 Rxd4 21.f3 Rcd8 22.Kf2 Ra4
23.a3 Rad4 24.Ke3 a5 25.e5 Kf8 26.f4 Bxg2 27.Rxg2 Ke7 28.Rc2
R8d5 29.Rdd2 f6 30.exf6+ Kxf6 31.h3 e5 32.Rc4 exf4+ 33.gxf4
Kf5 34.Rxd4 Rxd4 35.Rf2 h6 36.Rf1 Rd7 37.Rg1 Re7+ 38.Kf3 Re6
39.Rc1 Rd6 40.Ke3 Rd4 41.Rf1 Rd8 42.Rc1 Re8+ 43.Kf3 g5 44.fxg5
hxg5 45.Rf1 Re7 46.Rc1 Rh7 47.Kg3 Rd7 48.Rf1+ Kg6 49.Rf3 Rd4
50.Kg2 a4 51.Kg3 b5 52.Kf2 b4 53.Ke3 b3 54.Rf8 Rh4 55.Rg8+ Kf6
56.Rf8+ Ke5 57.Rf3 c4 58.Rg3 Kf6 59.Rf3+ Ke6 60.Rg3 Kf5
61.Rf3+ Ke5 62.Rg3 Kf6 63.Rf3+ Ke6 64.Rg3 cxd3 65.Rxg5 Rxh3+
66.Kd2 Rh2+ 1/2-1/2

[Event "UKR-ch"]
[Site "Kiev"]
[Date "1963.??.??"]
[EventDate "?"]
[Round "11"]
[Result "1/2-1/2"]
[White "V Tukmakov"]
[Black "Boris Markovich Kogan"]
[ECO "B14"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "81"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Be7 7.cxd5
Nxd5 8.Bd3 Nc6 9.O-O O-O 10.Re1 Nxc3 11.bxc3 b6 12.Qc2 g6
13.Bh6 Re8 14.Qd2 Bb7 15.h4 Bf8 16.h5 Bxh6 17.Qxh6 Qf6 18.Be4
Qg7 19.Qf4 gxh5 20.Re3 f5 21.Bxc6 Bxc6 22.Ng5 Kh8 23.Rg3 Re7
24.c4 Qf6 25.Re1 Rae8 26.Re5 Rf8 27.d5 exd5 28.Rxe7 Qxe7
29.cxd5 Bd7 30.Ne6 Bxe6 31.Re3 Rf6 32.Qe5 Kg8 33.dxe6 h4
34.Qd5 Rf8 35.Rd3 Re8 36.Re3 Qc5 37.Qd7 Qe7 38.Re5 Kg7 39.Qd4
Kg6 40.Qf4 Qg5 41.Qf3 1/2-1/2

[Event "UKR-ch"]
[Site "Kiev"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "9"]
[Result "0-1"]
[White "Boris Markovich Kogan"]
[Black "Jacob Yuchtman"]
[ECO "A56"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "180"]

1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 Be7 6.Nf3 O-O 7.h3 Ne8
8.g4 Nd7 9.Bd3 Nc7 10.Be3 Re8 11.a3 Nf8 12.b4 b6 13.Bc2 Ng6
14.Ba4 Rf8 15.Qd2 Nh4 16.Nxh4 Bxh4 17.O-O Ba6 18.b5 Bc8 19.Bc2
Ne8 20.Ra2 Nf6 21.f3 Nd7 22.Rb1 h6 23.a4 a5 24.bxa6 Bxa6
25.Nb5 Bxb5 26.Rxb5 Qf6 27.Bd1 Ra6 28.Qc3 Rfa8 29.Bd2 Bg3
30.Qd3 Qh4 31.Qf1 g5 32.Be3 Kg7 33.Kg2 h5 34.Bf2 Bxf2 35.Qxf2
hxg4 36.Qxh4 gxf3+ 37.Kxf3 gxh4 38.Rbb2 Kf6 39.Rg2 Nf8 40.Ke3
Ng6 41.Rg4 Ke7 42.Kd2 Rh8 43.Rg1 Nf4 44.Bg4 Rha8 45.Rga1 Kd8
46.Ra3 Kc7 47.Ke3 Ra5 48.Kd2 Rg8 49.Rb1 Ra6 50.Rba1 Kd8 51.Rb1
Ke7 52.Rba1 Rga8 53.Ke3 Kd8 54.Kd2 Ke7 55.Ke3 Ra5 56.Kd2 R5a6
57.Ke3 Rh8 58.Rb1 Nh5 59.Rba1 Nf6 60.Bf5 Rg8 61.Kf2 Nh5 62.Bg4
Nf6 63.Bf5 Nh5 64.Bg4 Ng3 65.Ke3 Rg6 66.Rb3 Rf6 67.Bc8 Ra8
68.Bf5 Nxf5+ 69.exf5 Ra6 70.Ke4 Rh6 71.a5 bxa5 72.Rb7+ Kf6
73.Rc7 Ra8 74.Rd7 Kg7 75.Rg1+ Kf8 76.Rb1 Rf6 77.Rbb7 Kg7
78.Ra7 Rb8 79.Rab7 Rh8 80.Rb6 Rhh6 81.Ra6 a4 82.Rxa4 Rh5
83.Ra6 Rhxf5 84.Raxd6 Rf4+ 85.Ke3 Rxd6 86.Rxd6 Rxc4 87.Rc6 f6
88.d6 Rd4 89.Rxc5 Rxd6 90.Rc4 Rd4 0-1

[Event "UKR-ch"]
[Site "Kiev"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "8"]
[Result "1-0"]
[White "Anatoly Bannik"]
[Black "Boris Markovich Kogan"]
[ECO "B15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "61"]

1.e4 c6 2.d4 d5 3.Nc3 g6 4.Nf3 Bg7 5.h3 dxe4 6.Nxe4 Nd7 7.Bc4
Ngf6 8.Nc3 O-O 9.O-O b5 10.Bd3 a6 11.a4 Bb7 12.Re1 Re8 13.Bf4
b4 14.Ne4 c5 15.Nxc5 Nxc5 16.dxc5 Nd7 17.Ne5 Nxc5 18.Bc4 e6
19.Qd2 g5 20.Bxg5 f6 21.Qxb4 Bf8 22.Rad1 Qe7 23.Bh4 Qg7 24.Ng4
f5 25.Nf6+ Kh8 26.Bf1 Rec8 27.Qf4 a5 28.Re3 Qc7 29.Qg5 Bd6
30.Rxd6 Qxd6 31.Bg3 1-0

[Event "URS-chT"]
[Site "Riga"]
[Date "1968.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Anatoly S Lutikov"]
[ECO "A07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "63"]

1.Nf3 d5 2.g3 c6 3.Bg2 Nf6 4.O-O Bg4 5.Ne5 Bh5 6.c4 e6 7.b3
Nbd7 8.Nxd7 Qxd7 9.Bb2 Be7 10.d3 O-O 11.Nd2 a5 12.a3 b5 13.Nf3
bxc4 14.bxc4 Rfb8 15.Qc2 Bxf3 16.Bxf3 a4 17.Rab1 Qa7 18.e3 Rb3
19.Bxf6 Rxb1 20.Rxb1 gxf6 21.cxd5 cxd5 22.Bd1 d4 23.exd4 Qxd4
24.Qc6 Ra7 25.Qe4 Qxe4 26.dxe4 Bxa3 27.Ra1 Bc5 28.Bxa4 Kf8
29.Ra2 Ke7 30.Bb3 Rb7 31.Bc4 Rb1+ 32.Kg2 1/2-1/2

[Event "URS-chT"]
[Site "Riga"]
[Date "1968.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Harry Pohla"]
[Black "Boris Markovich Kogan"]
[ECO "A04"]
[WhiteElo "?"]
[BlackElo "2445"]
[PlyCount "114"]

1.Nf3 Nf6 2.e3 c5 3.b3 g6 4.Bb2 Bg7 5.Be2 O-O 6.O-O Nc6 7.c4
d5 8.d3 Bg4 9.Ne5 Bxe2 10.Qxe2 Rc8 11.Nd2 Qd6 12.Ndf3 Nd7
13.Nxc6 Rxc6 14.Bxg7 Kxg7 15.e4 d4 16.e5 Qc7 17.Qe4 Re6
18.Rae1 h6 19.Re2 Kg8 20.Qh4 f6 21.Rfe1 Rf7 22.Qh3 Qc6 23.exf6
Rxe2 24.Rxe2 exf6 25.Qe6 Qxe6 26.Rxe6 a5 27.Kf1 Kg7 28.Ke2 Rf8
29.Rd6 Re8+ 30.Kd2 Re7 31.Ng1 Kf8 32.Ne2 g5 33.Ng3 Ke8 34.Nf5
Re5 35.Rd5 Rxd5 36.cxd5 Kd8 37.Nxh6 Nb6 38.Nf5 Nxd5 39.g3 Kd7
40.h4 gxh4 41.Nxh4 b5 42.a3 Nc3 43.Kc2 Ke6 44.g4 Nd5 45.Ng6
Kd6 46.Kd2 Ke6 47.Kc2 Kf7 48.Nh4 Nf4 49.Nf5 Ke6 50.b4 axb4
51.axb4 Kd5 52.Ne7+ Kd6 53.Nf5+ Kd5 54.Ne7+ Kd6 55.Nf5+ Kc6
56.Ne7+ Kb6 57.Nc8+ Kc6 1/2-1/2

[Event "URS-ch sf"]
[Site "Ivano Frankovsk"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Vladimir A Savon"]
[Black "Boris Markovich Kogan"]
[ECO "C71"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "178"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.d4 b5 6.Bb3 Nxd4 7.Nxd4
exd4 8.Bd5 Rb8 9.Qxd4 Bd7 10.c3 Nf6 11.Bb3 Be7 12.O-O O-O
13.Re1 Ng4 14.Bf4 Bh4 15.Bg3 Bxg3 16.hxg3 Qg5 17.Nd2 Rb6
18.Nf1 c5 19.Qd5 Qxd5 20.Bxd5 Be6 21.Rad1 Re8 22.f3 Ne5 23.Ne3
Nc4 24.Bxc4 Bxc4 25.b3 Be6 26.Nd5 Rc6 27.Kf2 f6 28.Rd2 Kf7
29.g4 a5 30.a3 Bxd5 31.Rxd5 h6 32.Ke3 Ke6 33.Ra1 Ra8 34.Kd2
Rb6 35.Kc2 Rc6 36.a4 b4 37.c4 Re8 38.Kd3 Kd7 39.f4 Re6 40.Ke3
Rc8 41.Rad1 Rc6 42.Kf3 Kc7 43.Rh1 Kd7 44.g5 hxg5 45.fxg5 Rc8
46.Rh7 Re7 47.gxf6 gxf6 48.Rh6 Rf7 49.g4 Re8 50.Rf5 Ref8
51.Rg6 Ke7 52.Rh5 Ke6 53.Kf4 Ke7 54.Kf5 Rd8 55.Rh4 Re8 56.Rhh6
Ref8 57.Rh5 Re8 58.Rgh6 Rg8 59.Rh7 Rg5+ 60.Rxg5 Rxh7 61.Rh5
Rg7 62.Rh8 Rg5+ 63.Kf4 Rg7 64.Ra8 Ke6 65.Rxa5 Rh7 66.Ra8 Rh1
67.a5 Rf1+ 68.Ke3 Re1+ 69.Kd3 Rd1+ 70.Ke2 Ra1 71.a6 Ke5 72.Ke3
Re1+ 73.Kd3 Rd1+ 74.Kc2 Rh1 75.a7 Kd4 76.Rd8 Rh2+ 77.Kc1 Ke3
78.Rxd6 Ra2 79.Rd7 Kxe4 80.Kb1 Ra3 81.Kb2 Kf3 82.Rg7 Ra5
83.Kc2 Ra3 84.Kd2 Ke4 85.Rc7 Ra2+ 86.Kc1 Kd3 87.Rh7 Kc3
88.Rh3+ Kd4 89.Rh7 Kc3 1/2-1/2

[Event "URS-ch sf"]
[Site "Ivano Frankovsk"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Ratmir Kholmov"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "60"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.O-O d5 6.Nxd4 e5 7.Nb3
Nc6 8.Bg5 Be6 9.Nc3 d4 10.Ne4 Be7 11.Bxf6 gxf6 12.Nec5 Bxc5
13.Nxc5 Qb6 14.Nxe6 fxe6 15.a4 O-O-O 16.Ra3 f5 17.Qd3 e4
18.Qb5 Qc7 19.f3 Rd5 20.Qc4 Qe5 21.fxe4 Rc5 22.Qd3 Nb4 23.Qf3
Nxc2 24.exf5 Nxa3 25.Qxb7+ Kd8 26.f6 Qc7 27.Qa8+ Qc8 28.Qxa7
Qc7 29.Qa8+ Qc8 30.Qa7 Qc7 1/2-1/2

[Event "URS-ch otbor"]
[Site "Beltsy"]
[Date "1977.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Vladimir A Savon"]
[Black "Boris Markovich Kogan"]
[ECO "C07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "69"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 Nf6 5.exd5 Nxd5 6.Nb3 cxd4
7.Nbxd4 Be7 8.g3 O-O 9.Bg2 Qc7 10.O-O Bf6 11.Qe2 a6 12.Rd1 h6
13.c4 Nb6 14.b3 e5 15.Nc2 Nc6 16.Ba3 Be7 17.Bxe7 Qxe7 18.Ne3
Qc5 19.Ne1 Be6 20.Nd5 Nd7 21.Nc2 Rfc8 22.b4 Qf8 23.c5 a5 24.a3
axb4 25.axb4 Rxa1 26.Rxa1 f5 27.Qb5 Nd8 28.Rd1 f4 29.gxf4 exf4
30.Nd4 Nxc5 31.bxc5 Rxc5 32.Nxe6 Nxe6 33.Qd7 Ng5 34.Ne7+ Kh7
35.Qd3+ 1-0

[Event "URS-ch13 corr7778"]
[Site "USSR"]
[Date "1977.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "M Umansky"]
[Black "Boris Markovich Kogan"]
[ECO "A29"]
[WhiteElo "2469"]
[BlackElo "?"]
[PlyCount "35"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bb4 5.Bg2 O-O 6.O-O Re8 7.Nd5
Bc5 8.d3 h6 9.e3 Bf8 10.b3 d6 11.Bb2 g6 12.h3 Bg7 13.Qd2 Bd7
14.Rfd1 Nh7 15.b4 Ne7 16.e4 Nxd5 17.cxd5 c6 18.dxc6 1/2-1/2

[Event "corr 1.EU tt"]
[Site "Endru"]
[Date "1978.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Boris Markovich Kogan"]
[Black "Cvachoucek"]
[ECO "D45"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "69"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. b3 Bd6
7. Be2 O-O 8. Bb2 dxc4 9. bxc4 e5 10. O-O exd4 11. exd4 Re8
12. Re1 Nf8 13. Qc2 Bg4 14. Ne5 Bxe5 15. dxe5 Bxe2 16. exf6
Bd3 17. Qb3 Qb6 18. Re7 Rxe7 19. fxe7 Ne6 20. Rd1 Qxb3
21. axb3 Bc2 22. Rd7 f6 23. Rxb7 Kf7 24. Ba3 Ke8 25. Na4 Bf5
26. f3 h5 27. Kf2 g5 28. Ke3 Nf4 29. g3 Ng6 30. Nc3 Bc8
31. Rc7 f5 32. Rxc6 Nxe7 33. Bxe7 Kxe7 34. Nd5+ Kf7 35. f4 1-0

[Event "USA"]
[Site "USA"]
[Date "1980.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Anthony Miles"]
[Black "Boris Markovich Kogan"]
[ECO "D37"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "95"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7 5.Bf4 O-O 6.e3 c5 7.dxc5
Bxc5 8.Qc2 Nc6 9.Rd1 Qe7 10.a3 Rd8 11.b4 Bd6 12.Bg5 dxc4
13.Bxc4 a5 14.b5 Ne5 15.Nxe5 Bxe5 16.Rxd8+ Qxd8 17.Ne4 h6
18.Nxf6+ Bxf6 19.Bxf6 Qxf6 20.O-O Bd7 21.Qe4 Rb8 22.Rd1 Be8
23.h3 Qe7 24.a4 Rc8 25.Be2 b6 26.Qd4 Qc7 27.Bf3 e5 28.Qd5 Kf8
29.Qe4 Kg8 30.Bg4 Rb8 31.Rd5 f6 32.Qd3 Qe7 33.Rd6 Bg6 34.Qd5+
Bf7 35.Be6 Bxe6 36.Rxe6 Qf7 37.Qd6 Qf8 38.Re7 Kh7 39.Qc7 Ra8
40.Rf7 Qg8 41.Rxf6 Qd8 42.Qxd8 Rxd8 43.Rxb6 Rd1+ 44.Kh2 Ra1
45.Re6 Rxa4 46.Rxe5 Rb4 47.b6 a4 48.Ra5 1-0

[Event "Ch USA"]
[Site "USA"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Lev Alburt"]
[Black "Boris Markovich Kogan"]
[ECO "A29"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "84"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bb4 5.Nd5 Bc5 6.Bg2 O-O 7.O-O
d6 8.d3 h6 9.Bd2 a5 10.a3 Nxd5 11.cxd5 Ne7 12.b4 axb4 13.axb4
Rxa1 14.Qxa1 Bb6 15.Qa2 Qe8 16.Bc3 Bg4 17.h3 Bh5 18.g4 Bg6
19.Nh4 f5 20.Nxg6 Qxg6 21.Qc4 Qf6 22.e3 fxg4 23.Qxg4 Nf5
24.Bd2 g6 25.Be4 h5 26.Qg2 Ra8 27.Bxf5 Qxf5 28.e4 Qf6 29.Bg5
Qg7 30.Be3 Bxe3 31.fxe3 Rf8 32.Rxf8+ Kxf8 33.Qg5 Ke8 34.Kf2
Kd7 35.Ke2 c6 36.dxc6 bxc6 37.Kd2 Qf7 38.Kc3 Qf1 39.Qxg6 Qxh3
40.Qf7+ Kd8 41.Qf8+ Kc7 42.Qf7+ Kd8 1/2-1/2

[Event "6, South Bend USA ch"]
[Site "6, South Bend USA ch"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Boris Markovich Kogan"]
[Black "Joel Benjamin"]
[ECO "A31"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "82"]

1.Nf3 c5 2.c4 Nf6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 d5 6.cxd5 Bc5
7.N5c3 O-O 8.e3 e4 9.Nd2 Bf5 10.g3 Nbd7 11.Bg2 Re8 12.O-O Rc8
13.h3 h5 14.b3 Bb4 15.Nb5 a6 16.Nd4 Bg6 17.Bb2 Ne5 18.a3 Bd6
19.Ne2 h4 20.Nf4 hxg3 21.fxg3 Bh7 22.Bd4 Bc5 23.Nc4 Nf3+
24.Bxf3 exf3 25.Bxc5 Rxc5 26.Qd4 Rb5 27.Rxf3 Be4 28.Rf2 Nxd5
29.Rd1 Qg5 30.Kh2 Nf6 31.Nd6 Rd8 32.Qc4 Rxd6 33.Rxd6 Rc5
34.Rd8+ Kh7 35.Qxf7 Rc1 36.Ng2 Qxe3 37.Rdd2 Bc6 38.Rde2 Qh6
39.Rf4 Bd5 40.Qe7 Qxh3+ 41.Kxh3 Rh1+ 0-1

[Event "USA-ch"]
[Site "USA-ch"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "John Fedorowicz"]
[Black "Boris Markovich Kogan"]
[ECO "C75"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "209"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.O-O Nf6 7.Re1
g6 8.d4 Qe7 9.dxe5 dxe5 10.Bc2 Bg7 11.h3 O-O 12.Be3 Nh5
13.Nbd2 Nd8 14.b4 Ne6 15.Nc4 f6 16.Bb3 Kh8 17.Qc2 Rad8 18.Rad1
Bc8 19.a4 Nhf4 20.Bc1 Rxd1 21.Rxd1 Rd8 22.Ne3 c6 23.Nc4 Rxd1+
24.Qxd1 Nd8 25.Be3 Be6 26.Bc5 Qe8 27.Bb6 Nf7 28.Na5 Bxb3
29.Nxb3 Bf8 30.Na5 Qc8 31.Be3 Ne6 32.Nd2 Qd7 33.Qe2 b5 34.axb5
axb5 35.Kh2 Kg7 36.Ndb3 Nfd8 37.Bb6 Be7 38.Qe3 Kf7 39.Nc5 Bxc5
40.Bxc5 Nf4 41.c4 Qd1 42.cxb5 Qf1 43.Qf3 cxb5 44.h4 Nde6
45.Be3 Qd3 46.Nc6 Qc4 47.Na7 Qxb4 48.g3 Nh5 49.Qd1 Nd4 50.Bxd4
exd4 51.Nc6 Qc4 52.Nxd4 Ng7 53.Qa1 Qc5 54.Qa2+ Ke7 55.Qb2 Qc4
56.Nxb5 Qxe4 57.Qa3+ Ke6 58.Qa6+ Ke7 59.Qa3+ Ke6 60.Qa2+ Ke7
61.Qg8 Ne6 62.Qxh7+ Kd8 63.Qa7 g5 64.Qa5+ Kd7 65.Qa7+ Kd8
66.Qb6+ Ke7 67.Qd6+ Kf7 68.Qd7+ Kg6 69.Qe8+ Kg7 70.Qe7+ Kg6
71.Qe8+ Kg7 72.Qe7+ Kg6 73.h5+ Kxh5 74.Qxf6 g4 75.Nd6 Qf3
76.Qh8+ Kg6+ 77.Qe8+ Kg7 78.Qe7+ Kh8 79.Nf7+ Kg8 80.Nh6+ Kh8
81.Qf7 Qxf7 82.Nxf7+ Kg7 83.Ne5 Kf6 84.Nxg4+ Kf5 85.f3 Kg5
86.Kg2 Kf5 87.Nf2 Ke5 88.Nh3 Kd4 89.Kf2 Nc5 90.g4 Nd3+ 91.Kg3
Ke5 92.f4+ Kf6 93.Nf2 Nc5 94.Kf3 Kf7 95.g5 Ne6 96.Kg4 Kg7
97.f5 Nf8 98.Ne4 Kf7 99.Kh5 Kg7 100.g6 Nd7 101.f6 Kg8 102.Kg5
Kh8 103.Kf5 Kg8 104.Ng5 Kh8 105.Ke6 1-0

[Event "Lone Pine op"]
[Site "3"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Borislav Ivkov"]
[ECO "A04"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "108"]

1.Nf3 g6 2.d4 Bg7 3.g3 Nf6 4.Bg2 O-O 5.O-O d6 6.Nc3 Nbd7 7.e4
e5 8.h3 c6 9.a4 a5 10.b3 Re8 11.Ba3 exd4 12.Nxd4 Nc5 13.Re1
Qb6 14.Bb2 Bd7 15.Qd2 Rad8 16.Rad1 Bc8 17.Qc1 Rd7 18.Kh2 h5
19.f3 h4 20.g4 Rde7 21.Qd2 Nh7 22.Nce2 Nxa4 23.bxa4 Qxb2
24.Qxa5 Qa3 25.c3 d5 26.Nc2 Qd6+ 27.Kg1 Qb8 28.Qb6 dxe4 29.f4
Nf6 30.Ne3 Nd7 31.Qa5 Nf8 32.Rf1 Qc7 33.Qa7 Rd7 34.Rxd7 Nxd7
35.Nc4 Bf8 36.Qf2 Bc5 37.Nd4 b5 38.axb5 cxb5 39.Ne3 b4 40.Nd5
Qd6 41.Nxb4 e3 42.Qb2 Nb6 43.Nbc6 Bd7 44.Ne5 Rxe5 45.fxe5 Qxe5
46.Ne2 Nc4 47.Qb7 Be6 48.Qb5 Kg7 49.Ra1 Nb6 50.Ra5 Nd7 51.Qc6
Qxc3 52.Nxc3 e2 53.Rxc5 e1=Q+ 54.Kh2 Qg3+ 1/2-1/2

[Event "Ch USA"]
[Site "USA"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Boris Markovich Kogan"]
[Black "Sergey Kudrin"]
[ECO "E02"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "141"]

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Nd2 a6
7.Nxc4 b5 8.Qc2 Nd5 9.Ne3 Bb4+ 10.Bd2 Nxe3 11.fxe3 Bxd2+
12.Qxd2 Rb8 13.Rc1 O-O 14.Nh3 Nf6 15.Nf2 Bb7 16.Bxb7 Rxb7
17.e4 Rb6 18.e5 Nd5 19.O-O f5 20.Nd3 Rf7 21.Rc5 g5 22.Nb4 Nxb4
23.Qxb4 f4 24.Qc3 b4 25.Qd3 Rb5 26.Rxb5 axb5 27.Qe4 Rd7
28.gxf4 Rxd4 29.Qc6 Rxf4 30.Qxe6+ Kh8 31.Rxf4 gxf4 32.Qf5 Qd4+
33.Kg2 Kg7 34.Qf6+ Kg8 35.Qe6+ Kf8 36.Qc8+ Ke7 37.Qxc7+ Ke6
38.Qxh7 Qxe5 39.Qg6+ Ke7 40.Qh7+ Ke6 41.Qg6+ Ke7 42.Qc2 Qd5+
43.Kf2 Qd4+ 44.Kf1 Kf6 45.Qc6+ Kg7 46.Qxb5 Qe4 47.Qc5 Qb1+
48.Kf2 Qxb2 49.Qg5+ Kh7 50.Qf5+ Kh8 51.Qf8+ Kh7 52.Qf7+ Kh8
53.Qxf4 Qxa2 54.Qf8+ Kh7 55.Qxb4 Qa7+ 56.Kf3 Qf7+ 57.Qf4 Qh5+
58.Kf2 Qc5+ 59.Kf1 Qc2 60.Kf2 Qc5+ 61.e3 Qc1 62.Kg3 Qg1+
63.Kh4 Qb1 64.e4 Qe1+ 65.Kg5 Qg1+ 66.Kh5 Qd1+ 67.Qg4 Qd6
68.Qf5+ Kg7 69.h4 Qh6+ 70.Kg4 Kh8 71.Qh5 1-0

[Event "South Bend USA ch"]
[Site "5"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Larry Christiansen"]
[ECO "E67"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "130"]

1.d4 g6 2.g3 Bg7 3.Bg2 d6 4.Nf3 Nf6 5.O-O O-O 6.c4 Nbd7 7.Nc3
e5 8.h3 Re8 9.e4 a6 10.Re1 Rb8 11.d5 b5 12.cxb5 axb5 13.b4 Nb6
14.Bg5 Bd7 15.Nd2 h6 16.Be3 Nh7 17.h4 f5 18.h5 f4 19.Bxb6 Rxb6
20.hxg6 Ng5 21.Qh5 Rf8 22.Nf3 Nxf3+ 23.Bxf3 Qf6 24.Rf1 Be8
25.Qg4 Kh8 26.Kg2 Bxg6 27.Qe6 Qg5 28.Qg4 Qxg4 29.Bxg4 c5
30.Rab1 c4 31.Bd7 f3 32.Kh3 h5 33.Bxb5 Bh6 34.Rb2 h4 35.Bd7
hxg3 36.fxg3 Be3 37.Bf5 Bxf5+ 38.exf5 Bd4 39.Rc2 Rxf5 40.Kg4
Rf7 41.Rxf3 Rg7+ 42.Kh3 Rxb4 43.Rf6 Rd7 44.Kg4 e4 45.Rf8+ Kg7
46.Rc8 e3 47.a3 Rb3 48.Rxc4 Bxc3+ 49.R2xc3 e2 50.Rc1 Re7
51.Re1 Rxa3 52.Kh3 Ree3 53.Rg4+ Kf6 54.Kg2 Kf5 55.Rg8 Ke4
56.Kf2 Kd3 57.Rb8 Kd4 58.Rxe2 Rf3+ 59.Ke1 Ra1+ 60.Kd2 Rxg3
61.Kc2 Rgg1 62.Rd2+ Kc5 63.Rc8+ Kb6+ 64.Rc6+ Kb5 65.Kd3 Rad1
1/2-1/2

[Event "USA-ch"]
[Site "USA-ch"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Leonid Shamkovich"]
[Black "Boris Markovich Kogan"]
[ECO "C03"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "127"]

1.e4 e6 2.d4 d5 3.Nd2 a6 4.Ngf3 c5 5.dxc5 Bxc5 6.Bd3 Nc6 7.c3
Nge7 8.O-O O-O 9.Nb3 Bb6 10.Bf4 Ng6 11.Bg3 f5 12.exf5 exf5
13.Nbd4 Bxd4 14.cxd4 f4 15.Bxg6 hxg6 16.Bh4 Qd6 17.Qd2 Bg4
18.Ne5 g5 19.Bxg5 Nxe5 20.dxe5 Qxe5 21.f3 Bd7 22.h4 Rae8
23.Rad1 Rf5 24.Rfe1 Qd6 25.Rxe8+ Bxe8 26.Qd4 Bc6 27.Re1 a5
28.Re4 Qg6 29.Rxf4 Rxf4 30.Bxf4 a4 31.a3 Kh7 32.Be5 Qf7 33.Kf2
Bb5 34.g4 Bc4 35.h5 Kg8 36.Qe3 Qe7 37.Bd4 Qxe3+ 38.Kxe3 Bb3
39.Kf4 Bd1 40.Kg3 Be2 41.f4 Kf7 42.f5 Bd1 43.Kh4 Bc2 44.Kg5
Bd1 45.Kh4 Bc2 46.h6 gxh6 47.Kh5 Bd1 48.Be3 Kf6 49.Bxh6 d4
50.Bg5+ Ke5 51.f6+ Ke6 52.Kg6 Bxg4 53.f7+ Bh5+ 54.Kxh5 Kxf7
55.Kg4 Ke6 56.Kf3 Kd5 57.Ke2 Kc4 58.Kd2 b5 59.Be7 Kb3 60.Kd3
Kxb2 61.Kxd4 Kb3 62.Bb4 Kc2 63.Kc5 Kd3 64.Kxb5 1-0

[Event "Lone Pine op"]
[Site "Lone Pine op"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "2"]
[Result "1-0"]
[White "Gennady Sosonko"]
[Black "Boris Markovich Kogan"]
[ECO "D15"]
[WhiteElo "2595"]
[BlackElo "2430"]
[PlyCount "69"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. Qb3 e6 6. g3 dxc4
7. Qxc4 b5 8. Qd3 c5 9. Bg2 Bb7 10. O-O Nbd7 11. Rd1 c4
12. Qc2 b4 13. Nb1 Rc8 14. Bg5 Be7 15. Ne5 Bxg2 16. Kxg2 O-O
17. a3 c3 18. bxc3 bxc3 19. Nxc3 Qc7 20. Nxd7 Qxd7 21. Bxf6
gxf6 22. Rd3 Rc7 23. Qd2 Rfc8 24. d5 f5 25. Rb1 Bxa3 26. dxe6
Qxe6 27. Nd5 Bc1 28. Rxc1 Rxc1 29. Re3 Qc6 30. f3 Qc5 31. Ne7+
Kf8 32. Nxc8 Qxc8 33. Rd3 Qc6 34. Rd6 Qc3 35. Rd8+ 1-0

[Event "South Bend USA ch"]
[Site "9"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "James E Tarjan"]
[ECO "E02"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "114"]

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Nd2 c6
7.Qxc4 e5 8.dxe5 Nxe5 9.Qc3 Bd6 10.Ngf3 Qe7 11.O-O O-O 12.Nxe5
Bxe5 13.Qc2 Re8 14.Re1 Be6 15.Nf3 Bc7 16.e4 Bb6 17.Be3 Bxe3
18.Rxe3 Rad8 19.a3 Qd7 20.Rae1 h6 21.Bf1 Qc7 22.Rd3 Bg4 23.Nh4
Rxd3 24.Bxd3 Qe5 25.Re3 Rd8 26.Kg2 Be6 27.h3 Qd4 28.Nf3 Qd7
29.Ng1 Qd4 30.Ne2 Qb6 31.Nf4 Bb3 32.Qc3 a5 33.Bb1 a4 34.Rd3
Kf8 35.f3 Rxd3 36.Nxd3 Nd7 37.Nc1 f6 38.f4 Ke7 39.Ne2 c5 40.g4
Be6 41.Bc2 Qc6 42.Kf2 g5 43.Qe3 Qb5 44.e5 Qxb2 45.exf6+ Kxf6
46.Qd3 Ke7 47.Bxa4 gxf4 48.Bxd7 Bxd7 49.Qe4+ Be6 50.a4 b6
51.Qb7+ Kf6 52.a5 Qe5 53.Qxb6 Qe3+ 54.Kf1 f3 55.Ng3 Kg5
56.Qd8+ Kg6 57.Qe8+ Kh7 1/2-1/2

[Event "Lone Pine op"]
[Site "Lone Pine"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Artur Yusupov"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "52"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.e3 Qb6 5.Qc1 Ne4 6.c3 Nxg5 7.Nxg5
Be7 8.Nf3 d5 9.Bd3 Nc6 10.O-O Bd7 11.Nbd2 Rc8 12.Qb1 g6 13.h4
O-O 14.dxc5 Bxc5 15.e4 Qc7 16.Nb3 Bb6 17.exd5 exd5 18.Qc1 Ne5
19.Nxe5 Qxe5 20.Qg5 Qxg5 21.hxg5 Rce8 22.Rfe1 f6 23.gxf6 Rxf6
24.Rxe8+ Bxe8 25.Rf1 g5 26.Nd4 Bxd4 1/2-1/2

[Event "Lone Pine"]
[Site "Lone Pine"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "04"]
[Result "1/2-1/2"]
[White "Joseph M Bradford"]
[Black "Boris Markovich Kogan"]
[ECO "A04"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "135"]

1.Nf3 c5 2.c4 Nc6 3.Nc3 g6 4.d4 cxd4 5.Nxd4 Bg7 6.Nc2 d6 7.Qd2
Nf6 8.e4 O-O 9.Be2 Nd7 10.h4 h5 11.Rb1 Nc5 12.b4 Bxc3 13.Qxc3
Nxe4 14.Qb2 f5 15.g3 e5 16.Rg1 Kh7 17.f3 Nxg3 18.Bg5 Nxe2
19.Bxd8 Nxg1 20.Bc7 Nxf3+ 21.Ke2 Nxh4 22.b5 Nd4+ 23.Nxd4 exd4
24.Qxd4 f4 25.Kf2 Bg4 26.Re1 Nf5 27.Qd5 b6 28.Bxd6 Nxd6
29.Re7+ Kh6 30.Qxd6 Rad8 31.Qc7 Kg5 32.Re5+ Bf5 33.Rd5 Rde8
34.Re5 Rd8 35.Rd5 Rde8 36.Re5 Kg4 37.c5 bxc5 38.Rxc5 Re3
39.Rc4 Rf3+ 40.Kg2 Re8 41.Rc2 Rg3+ 42.Kf2 Rf3+ 43.Kg2 Rg3+
44.Kf2 Bxc2 45.Qd7+ Bf5 46.Qxe8 Rf3+ 47.Kg1 Re3 48.Qa8 Be4
49.Qxa7 h4 50.Qd7+ Kg3 51.Qd2 h3 52.b6 Bf3 53.Qf2+ Kg4 54.Kh2
Be4 55.a4 Bb7 56.a5 g5 57.Qd2 Kf3 58.Qd7 Re2+ 59.Kxh3 Be4
60.b7 Re1 61.Qg4+ Ke3 62.Qe6 Rb1 63.a6 f3 64.Qe5 f2 65.Qxg5+
Ke2 66.Qg4+ Ke3 67.Qg3+ Ke2 68.Qg4+ 1/2-1/2

[Event "Lone Pine"]
[Site "Lone Pine"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "05"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Douglas Root"]
[ECO "E80"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "94"]

1.c4 Nf6 2.d4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 b6 6.Bd3 Bb7 7.Nge2 c5
8.d5 a6 9.a4 Nbd7 10.Bc2 Qc7 11.Bg5 h6 12.Bh4 g5 13.Bf2 Ne5
14.b3 Ng6 15.O-O Nd7 16.Qd2 O-O-O 17.a5 bxa5 18.Ra2 Nde5
19.Rfa1 h5 20.Rxa5 h4 21.h3 Qd7 22.Qe3 Kb8 23.Na4 Nxf3+
24.Qxf3 Bxa1 25.Nxc5 dxc5 26.Rxa1 g4 27.Qxg4 Qxg4 28.hxg4 Rc8
29.Ra5 h3 30.gxh3 Rxh3 31.Kg2 Rch8 32.Bg3+ Ka7 33.Rxc5 f6
34.Rc7 Kb8 35.Rc5+ Ka8 36.Ng1 R3h6 37.Rc7 Bc8 38.Bd1 R6h7
39.b4 e6 40.Rxh7 Rxh7 41.Nh3 Rb7 42.Bd6 Ne5 43.Be2 exd5
44.cxd5 Bxg4 45.Bxa6 Rb6 46.Bxe5 fxe5 47.Nf2 Bh5 1/2-1/2

[Event "Lone Pine"]
[Site "Lone Pine"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "06"]
[Result "0-1"]
[White "Jay E Whitehead"]
[Black "Boris Markovich Kogan"]
[ECO "B40"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "70"]

1.e4 c5 2.Nf3 e6 3.b3 Nc6 4.Bb2 Nf6 5.e5 Nd5 6.Bb5 Qb6 7.Bc4
Nf4 8.O-O Be7 9.Re1 O-O 10.Nc3 f5 11.d4 Nxd4 12.Nxd4 cxd4
13.Na4 Qc6 14.Qf3 Qxf3 15.gxf3 Rb8 16.Bc1 Ng6 17.Bf1 b5 18.Nb2
Bb4 19.Re2 Bb7 20.Kg2 f4 21.Nd3 Bc3 22.Rb1 Nh4+ 23.Kh3 Nxf3
24.Bxf4 Ng1+ 25.Kg3 Nxe2+ 26.Bxe2 Rbc8 27.f3 Rf5 28.Rg1 Ba5
29.Bd1 g5 30.Kf2 h6 31.Bc1 Be4 32.Rxg5+ hxg5 33.Bd2 Bxd2 34.c3
Bxd3 35.Bc2 Bxc2 0-1

[Event "Lone Pine"]
[Site "Lone Pine"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "07"]
[Result "1/2-1/2"]
[White "Samuel Reshevsky"]
[Black "Boris Markovich Kogan"]
[ECO "A75"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "113"]

1.d4 Nf6 2.c4 c5 3.d5 g6 4.Nc3 Bg7 5.e4 d6 6.Nf3 O-O 7.Be2 e6
8.O-O exd5 9.cxd5 a6 10.a4 Bg4 11.Bf4 Re8 12.Qc2 Qc7 13.h3
Bxf3 14.Bxf3 Nbd7 15.Rfe1 Rab8 16.Be2 h6 17.a5 Re7 18.Ra4 Rbe8
19.Kh1 Nh7 20.h4 h5 21.Qd3 Be5 22.Bd2 Ndf6 23.Bf3 Qd7 24.b3
Ng4 25.Bxg4 Qxg4 26.g3 Qh3+ 27.Kg1 f5 28.Qf1 Qxf1+ 29.Kxf1 Nf6
30.exf5 Bxc3 31.Bxc3 Nxd5 32.Rxe7 Rxe7 33.Bd2 gxf5 34.f3 Kf7
35.Kf2 Ke6 36.g4 hxg4 37.fxg4 fxg4 38.Rxg4 Nf6 39.Rf4 Rh7
40.b4 Nd5 41.Re4+ Kd7 42.bxc5 dxc5 43.Ke2 Kc6 44.Re6+ Kb5
45.Re5 Kc4 46.h5 Kd4 47.Rg5 Re7+ 48.Kd1 Re4 49.h6 Rh4 50.Rg1
c4 51.Bg5 Ne3+ 52.Ke2 Rh3 53.h7 Rh2+ 54.Kf3 Rh3+ 55.Ke2 Rh2+
56.Kf3 Rh3+ 57.Ke2 1/2-1/2

[Event "Lone Pine"]
[Site "Lone Pine"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "08"]
[Result "1-0"]
[White "Boris Markovich Kogan"]
[Black "Andrew Soltis"]
[ECO "A04"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "155"]

1.Nf3 g6 2.g3 Bg7 3.d4 Nf6 4.Bg2 O-O 5.O-O c6 6.b3 d5 7.Bb2 a5
8.a4 Na6 9.Nbd2 Re8 10.Re1 Qb6 11.h3 Bf5 12.g4 Be4 13.Nxe4
Nxe4 14.e3 Rad8 15.Qe2 Nb4 16.Rad1 e6 17.Ne5 Rf8 18.f3 Nf6
19.c3 Na6 20.Ba3 Rfe8 21.b4 Nb8 22.Rb1 Nfd7 23.f4 f6 24.Nd3 e5
25.Qf2 exd4 26.exd4 f5 27.g5 Qc7 28.Ne5 axb4 29.cxb4 Nxe5
30.dxe5 Nd7 31.b5 Nf8 32.Bc5 Qd7 33.a5 Ne6 34.bxc6 bxc6 35.Bb6
Ra8 36.Re2 Bf8 37.Rc2 Rec8 38.Qd2 Kg7 39.h4 Be7 40.Kh2 h6
41.Kg3 Kf7 42.Rbc1 Rab8 43.Bf3 Bd8 44.Rb2 d4 45.Qd3 c5 46.Qc4
hxg5 47.hxg5 Bxg5 48.fxg5 Qe7 49.Kf2 Qxg5 50.Re2 Rh8 51.Rg1
Rh2+ 52.Rg2 Qh4+ 53.Kf1 Rh1+ 54.Rg1 Qf4 55.Rf2 Rh2 56.Bg2 Qe3
57.Re2 Qf4+ 58.Ke1 Qg3+ 59.Kd1 d3 60.Rd2 Qxe5 61.Rxd3 Kf6
62.Qc3 Nd4 63.Re1 Qf4 64.Rxd4 cxd4 65.Qxd4+ Qxd4+ 66.Bxd4+ Kg5
67.Re2 Rd8 68.Rd2 f4 69.a6 Kf5 70.Bc3 Rc8 71.Bb7 Rxc3 72.Rxh2
Ra3 73.Kc1 g5 74.Kb1 f3 75.Ra2 Rxa6 76.Rxa6 g4 77.Kc2 Kf4
78.Kd2 1-0

[Event "Lone Pine"]
[Site "Lone Pine"]
[Date "1981.??.??"]
[EventDate "?"]
[Round "09"]
[Result "1/2-1/2"]
[White "Lev Gutman"]
[Black "Boris Markovich Kogan"]
[ECO "A07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "139"]

1.Nf3 d5 2.g3 g6 3.Bg2 Bg7 4.d4 Nf6 5.O-O c6 6.Bf4 Qb6 7.Qc1
O-O 8.c4 dxc4 9.Nbd2 Be6 10.e4 Na6 11.Ng5 Bg4 12.h3 Be2 13.Re1
Bd3 14.Ngf3 Nb4 15.Nxc4 Qa6 16.Nce5 Bxe4 17.Bf1 Qb6 18.Rxe4
Nxe4 19.Nd7 Qd8 20.Nxf8 Kxf8 21.Qe1 Nc2 22.Qxe4 Nxa1 23.Bc4 e6
24.Qb1 Bxd4 25.Qxa1 Bg7 26.Qc1 Qf6 27.Ne5 Kg8 28.h4 Qe7 29.Qe3
a6 30.Bb3 Re8 31.h5 gxh5 32.Qe2 h4 33.Qg4 hxg3 34.Qxg3 Kh8
35.Qh3 Kg8 36.Bc2 f5 37.Qh5 Rf8 38.Bb3 c5 39.Qe2 Rf6 40.Nf3
Rg6+ 41.Kf1 b5 42.Ne5 Qb7 43.f3 Bxe5 44.Bxe5 c4 45.Bc2 Qd5
46.Qe3 h5 47.Qf4 c3 48.Bxc3 Qc4+ 49.Qxc4 bxc4 50.Be1 Kf7 51.b3
c3 52.b4 Ke7 53.Bxc3 h4 54.Be5 h3 55.Bd3 Rg2 56.Be2 f4 57.Bxf4
Kf6 58.Bxa6 e5 59.Bc8 exf4 60.Bxh3 Rxa2 61.Bd7 Ke5 62.b5 Rb2
63.Bc6 Kd4 64.Bd7 Ke3 65.Bc6 Rb3 66.Kg2 Ke2 67.Kh3 Ke3 68.Kg4
Rc3 69.Be4 Rb3 70.Bc6 1/2-1/2

[Event "U.S. Championship"]
[Site "South Bend, IN"]
[Date "1981.07.29"]
[EventDate "?"]
[Round "15"]
[Result "1-0"]
[White "Samuel Reshevsky"]
[Black "Boris Markovich Kogan"]
[ECO "A33"]
[WhiteElo "?"]
[BlackElo "2445"]
[PlyCount "107"]

1.Nf3 c5 2.c4 Nf6 3.Nc3 Nc6 4.d4 cxd4 5.Nxd4 e6 6.g3 Bc5 7.Nb3
Bb4 8.Bg2 d5 9.cxd5 Nxd5 10.O-O Nxc3 11.Qxd8+ Nxd8 12.bxc3
Bxc3 13.Rb1 a5 14.Rd1 f6 15.a3 Rf8 16.Nc5 Rf7 17.Bf4 g5 18.Bd6
e5 19.Bd5 Bd4 20.Bxf7+ Kxf7 21.e3 Bxc5 22.Bxc5 Bg4 23.Rdc1 Bf3
24.Bb6 Ne6 25.Rb5 a4 26.h3 h5 27.Ra5 Rxa5 28.Bxa5 Bc6 29.Rc4
Ng7 30.Bb6 Nf5 31.Bc5 Ke6 32.Rb4 Nh6 33.f4 g4 34.h4 Kf5 35.Bd6
Nf7 36.Bc7 Nh6 37.Kf2 Ng8 38.e4+ Bxe4 39.fxe5 Bc6 40.Rc4 Ke6
41.exf6 Nxf6 42.Bf4 Nd7 43.Ke3 Kf5 44.Kd4 Kf6 45.Bg5+ Kf7
46.Rc1 Nf8 47.Ke5 Kg6 48.Be7 Nd7+ 49.Ke6 Nb6 50.Rc5 Bd7+
51.Kd6 Bc6 52.Bd8 Nc8+ 53.Ke6 Kh6 54.Bc7 1-0

[Event "Cup World"]
[Site "Reykjavik (Iceland)"]
[Date "1982.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Andras Adorjan"]
[Black "Boris Markovich Kogan"]
[ECO "A21"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "51"]

1.c4 e5 2.Nc3 Bb4 3.Nf3 Bxc3 4.dxc3 Nc6 5.g3 Nge7 6.c5 b6
7.Be3 O-O 8.Bg2 Rb8 9.b3 f5 10.cxb6 cxb6 11.Bg5 d6 12.O-O h6
13.Bc1 f4 14.gxf4 exf4 15.c4 Be6 16.Bb2 Ng6 17.Kh1 Qe7 18.Rg1
Nce5 19.Nxe5 Nxe5 20.Bd5 Rf5 21.f3 Re8 22.Be4 Rg5 23.Qd4 Rc8
24.Qf2 Bf5 25.Bd5+ Be6 26.Be4 1/2-1/2

[Event "Reykjavik op"]
[Site "11"]
[Date "1982.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Dimitri Gurevich"]
[Black "Boris Markovich Kogan"]
[ECO "D61"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "89"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.Nc3 Be7 5.Bg5 O-O 6.e3 Nbd7 7.Qc2
c5 8.Rd1 Qa5 9.cxd5 Nxd5 10.Bxe7 Nxe7 11.Bd3 g6 12.O-O cxd4
13.Nxd4 Nf6 14.Ne4 Nfd5 15.a3 Bd7 16.b4 Qb6 17.Nc5 Rfd8 18.e4
Nf4 19.Bc4 Be8 20.Qc1 Nh5 21.Qg5 Nc6 22.Nb5 Rxd1 23.Rxd1 Nxb4
24.Rd6 Nc6 25.Nxe6 fxe6 26.Rxe6 Kh8 27.g4 Qd8 28.Rxe8+ Qxe8
29.Nd6 Ne5 30.Kg2 Qf8 31.Qxe5+ Qf6 32.gxh5 Qxe5 33.Nf7+ Kg7
34.Nxe5 Rc8 35.f4 b5 36.Bxb5 Rc2+ 37.Kf1 Rd2 38.hxg6 hxg6
39.Be8 g5 40.f5 Rd4 41.Nd7 Rxe4 42.f6 Kh7 43.f7 Rf4+ 44.Kg2
Kg7 45.f8=Q+ 1-0

[Event "Reykjavik"]
[Site "Reykjavik"]
[Date "1982.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Boris Markovich Kogan"]
[Black "Karl Burger"]
[ECO "E06"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "68"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Be7 5.Bg2 O-O 6.O-O dxc4 7.Qc2
a6 8.a4 Bd7 9.Rd1 Bc6 10.Nc3 Bxf3 11.Bxf3 Nc6 12.Bxc6 bxc6
13.a5 Rb8 14.Qa4 Bb4 15.Na2 Be7 16.Nc3 Bb4 17.Qxc6 Bxc3
18.bxc3 Qd5 19.Qxc7 Ne4 20.Ra3 Nd6 21.Ra4 Rfc8 22.Qe7 Ne4
23.Ra3 Rb7 24.Qh4 Rb3 25.Rxb3 cxb3 26.Bb2 Nxc3 27.Bxc3 Rxc3
28.Qe7 h6 29.Qb4 Rc2 30.e4 Qh5 31.Rf1 b2 32.d5 Qe2 33.Qb8+ Kh7
34.Qf4 Qxf1+ 0-1

[Event "Ch USA"]
[Site "USA"]
[Date "1983.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Boris Markovich Kogan"]
[Black "Lev Alburt"]
[ECO "A57"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "68"]

1.d4 Nf6 2.Nf3 c5 3.d5 b5 4.c4 g6 5.Nbd2 Bg7 6.e4 O-O 7.Bd3
bxc4 8.Nxc4 Ba6 9.Qc2 e6 10.dxe6 fxe6 11.e5 Nd5 12.a3 Nc6
13.h4 Qc7 14.h5 Bxc4 15.Qxc4 Nxe5 16.Nxe5 Qxe5+ 17.Qe4 Rab8
18.hxg6 hxg6 19.Rb1 Nf4 20.Bxf4 Qxe4+ 21.Bxe4 Rxf4 22.Bxg6
Rxb2 23.O-O Kf8 24.f3 Ra4 25.Rxb2 Bxb2 26.Rb1 Bd4+ 27.Kh2 Rxa3
28.Rb7 Ke7 29.Be4 Kd6 30.g4 c4 31.Rb1 Be5+ 32.Kh3 Kc5 33.Rf1
Ra1 34.Bb1 c3 0-1

[Event "Ch USA"]
[Site "Greenville (USA)"]
[Date "1983.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Joel Benjamin"]
[ECO "A16"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "114"]

1.c4 Nf6 2.Nc3 c5 3.Nf3 b6 4.d4 cxd4 5.Nxd4 Bb7 6.f3 e6 7.e4
Nc6 8.Be3 Bc5 9.Be2 O-O 10.Nxc6 Bxc6 11.Bxc5 bxc5 12.O-O Qb8
13.Qd2 Rd8 14.Rac1 a6 15.Bd3 Qd6 16.Qe3 e5 17.Rf2 Nh5 18.g3 g6
19.f4 exf4 20.gxf4 Re8 21.Re1 Rab8 22.e5 Qe7 23.Be4 f6 24.Nd5
Bxd5 25.Bxd5+ Kh8 26.Qc3 Ng7 27.Rfe2 fxe5 28.Rxe5 Qf8 29.Rxe8
Rxe8 30.Rxe8 Qxe8 31.Kf2 Qf8 32.Ke3 d6 33.Be4 Qd8 34.b4 cxb4
35.Qxb4 Nh5 36.Qb2+ Nf6 37.Qd4 Qe7 38.Kd3 Kg7 39.Bf3 Qd7
40.Ke3 a5 41.Kf2 Qc7 42.Kg3 Qc5 43.Qxc5 dxc5 44.h4 Ne8 45.h5
gxh5 46.Be4 h6 47.Kh4 Nf6 48.Bd3 Kf7 49.Bf5 Ke7 50.Bc2 Kf7
51.Bf5 Kf8 52.Bc2 Kg8 53.Bd3 Kh8 54.Bc2 Kg8 55.Bd3 Kf8 56.Bc2
Kg7 57.Bd3 Kf7 1/2-1/2

[Event "Ch USA"]
[Site "Greenville (USA)"]
[Date "1983.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Walter Shawn Browne"]
[Black "Boris Markovich Kogan"]
[ECO "D67"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "61"]

1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.Nf3 e6 5.Bg5 Nbd7 6.e3 Be7 7.Rc1
O-O 8.Bd3 dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.O-O Nxc3 12.bxc3 e5
13.Qe2 e4 14.Nd2 Nf6 15.f3 Be6 16.Bxe6 Qxe6 17.c4 exf3 18.gxf3
Rad8 19.Rce1 Rfe8 20.Qf2 b5 21.cxb5 cxb5 22.Nb3 Nd5 23.Nc5 Qh6
24.e4 Nf4 25.Kh1 Rd6 26.Qd2 Qh4 27.Rg1 Ne6 28.Nxe6 fxe6 29.Qe3
Rd7 30.Rg5 a6 31.Rc1 1/2-1/2

[Event "Ch USA"]
[Site "Greenville (USA)"]
[Date "1983.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nick DeFirmian"]
[Black "Boris Markovich Kogan"]
[ECO "C16"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "75"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.Nf3 b6 6.Bd3 Ba6 7.O-O
Bxc3 8.bxc3 Bxd3 9.cxd3 Nd7 10.Re1 h6 11.Nh4 g6 12.Ba3 c5
13.Qg4 Qc8 14.dxc5 Qa6 15.c6 Nxc6 16.Bd6 Qxd3 17.Nf3 Nc5
18.Qh4 Ne4 19.Rad1 Qc4 20.Rxe4 Qxe4 21.Qf6 Rh7 22.Nd4 Kd7
23.Nxc6 Kxc6 24.Qe7 Rc8 25.Qxa7 g5 26.c4 Qc2 27.cxd5+ exd5
28.Rf1 f6 29.Qa3 Kb7 30.Qf3 fxe5 31.Qxd5+ Qc6 32.Qxe5 Rd7
33.Bb4 Qd5 34.Qe3 Qxa2 35.h3 Qd5 36.Ra1 Rc6 37.Qa3 Rcc7
38.Qa8+ 1-0

[Event "Ch USA"]
[Site "Greenville (USA)"]
[Date "1983.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Roman Dzindzichashvili"]
[Black "Boris Markovich Kogan"]
[ECO "A21"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "83"]

1.c4 e5 2.Nc3 Bb4 3.Nf3 Bxc3 4.dxc3 Nc6 5.e4 d6 6.Be2 Nge7
7.O-O Ng6 8.Bg5 f6 9.Be3 Be6 10.c5 dxc5 11.Bxc5 Qxd1 12.Rfxd1
Kf7 13.g3 Rhd8 14.Rxd8 Rxd8 15.Be3 b6 16.Nd2 Nge7 17.Bb5 g5
18.f3 a5 19.b3 h6 20.Kf1 Na7 21.Ba6 Nac8 22.Ke2 Nd6 23.Bd3 Ra8
24.a4 f5 25.Bc2 f4 26.Bf2 h5 27.gxf4 gxf4 28.Rg1 Rg8 29.Rxg8
Kxg8 30.Kd3 Bc8 31.Ke2 Kf7 32.Bd3 Be6 33.Kd1 Ke8 34.Kc2 Kd7
35.b4 Nc6 36.b5 Ne7 37.c4 c5 38.Kc3 Ng6 39.Nb3 Nb7 40.Bf1 Kd6
41.Nd2 Nd8 42.Kd3 1/2-1/2

[Event "Ch USA"]
[Site "Greenville (USA)"]
[Date "1983.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Dimitri Gurevich"]
[Black "Boris Markovich Kogan"]
[ECO "C53"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "169"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d3 O-O 6.O-O Be7 7.Re1
d6 8.d4 Bg4 9.d5 Nb8 10.h3 Bc8 11.Bf1 Ne8 12.c4 Nd7 13.Nc3 g6
14.Bh6 Ng7 15.Qd2 Kh8 16.b4 Nf6 17.c5 Ng8 18.cxd6 cxd6 19.Be3
f5 20.exf5 gxf5 21.Bg5 Bxg5 22.Nxg5 f4 23.Ne6 Bxe6 24.dxe6 Rf6
25.Rad1 Rxe6 26.Nb5 Nf5 27.Qd5 Re7 28.Nxd6 Qxd6 29.Qxd6 Nxd6
30.Rxd6 Kg7 31.Rd5 Kf6 32.Bc4 Nh6 33.g3 Rc8 34.Bb3 fxg3
35.fxg3 Nf5 36.g4 Nh4 37.Kf2 Ng6 38.Re3 Rc1 39.Kg3 Rg1+ 40.Kf2
Rh1 41.Rd6+ Kg5 42.Rd1 Rxd1 43.Bxd1 Kh4 44.Be2 Nf4 45.Bf1 e4
46.Bg2 Nd3+ 47.Ke2 Nxb4 48.Rxe4 Rxe4+ 49.Bxe4 h6 50.a3 Nc6
51.Bg2 Kg3 52.Bf1 Nd4+ 53.Ke3 Nf3 54.Bc4 Ng5 55.h4+ Kxh4
56.Kf4 Nh3+ 57.Kf5 Nf2 58.Be2 b6 59.Kf4 Nh3+ 60.Kf5 Kg3 61.Ba6
Ng5 62.Bc8 Nf3 63.Kg6 Ne5+ 64.Kh5 Kf4 65.a4 Kg3 66.Bf5 Kf3
67.Be6 Kf4 68.Bc8 Kg3 69.Bf5 Kf3 70.Be6 a6 71.Bc8 Kf4 72.Bxa6
Nxg4 73.Be2 Nf6+ 74.Kxh6 Nd5 75.Bb5 Nc3 76.Be8 Ke5 77.Kg6 Kd5
78.Kf6 Ne4+ 79.Ke7 Kc5 80.Bg6 Nc3 81.Bc2 Kb4 82.Kd6 Nxa4
83.Kc6 b5 84.Bd3 Nc3 85.Bxb5 1/2-1/2

[Event "Ch USA"]
[Site "Greenville (USA)"]
[Date "1983.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Sergey Kudrin"]
[ECO "A34"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "64"]

1.c4 c5 2.Nc3 g6 3.Nf3 Bg7 4.e3 Nf6 5.d4 O-O 6.Be2 cxd4 7.exd4
d5 8.O-O Nc6 9.Bg5 dxc4 10.Bxc4 Bg4 11.d5 Ne5 12.Be2 Bxf3
13.Bxf3 Qb6 14.Re1 Nxf3+ 15.Qxf3 h6 16.Bh4 Qb4 17.Bg3 Nh5
18.Rab1 Nxg3 19.hxg3 Rac8 20.Qe3 Rfe8 21.Qxa7 Bd4 22.Re4 Rc4
23.a3 Bxa7 24.axb4 Rxe4 25.Nxe4 Rc8 26.Nc3 Rc4 27.Re1 Rxb4
28.Rxe7 Rxb2 29.Ne4 f5 30.Nf6+ Kf8 31.d6 Bxf2+ 32.Kh2 Rb3
1/2-1/2

[Event "Ch USA"]
[Site "Greenville (USA)"]
[Date "1983.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Larry Christiansen"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "51"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.e3 h6 5.Bxf6 Qxf6 6.Nbd2 cxd4
7.exd4 Nc6 8.c3 d5 9.Bd3 Bd6 10.O-O O-O 11.Qe2 Re8 12.Rae1 e5
13.Nxe5 Nxe5 14.dxe5 Bxe5 15.Qd1 Bd7 16.Nf3 Bc7 17.Rxe8+ Rxe8
18.Re1 Rxe1+ 19.Qxe1 Kf8 20.Nd4 Qe5 21.Qxe5 Bxe5 22.g3 Bxd4
23.cxd4 g5 24.f4 f6 25.Kf2 Ke7 26.h4 1/2-1/2

[Event "Ch USA"]
[Site "USA"]
[Date "1983.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Kamran G Shirazi"]
[Black "Boris Markovich Kogan"]
[ECO "C15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "111"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Ne2 dxe4 5.a3 Be7 6.Nxe4 Nf6 7.Qd3
Nbd7 8.Bf4 Nxe4 9.Qxe4 Nf6 10.Qf3 O-O 11.O-O-O Rb8 12.Nc3 Nd5
13.Nxd5 exd5 14.Qg3 Bh4 15.Qc3 Bg5 16.Qd2 Bxf4 17.Qxf4 Be6
18.Bd3 b6 19.Rhe1 c5 20.Re5 c4 21.Bf5 Qf6 22.g4 g6 23.g5 Qe7
24.Bxe6 fxe6 25.Qe3 Rbe8 26.Re1 Rf5 27.Rxf5 gxf5 28.Rg1 Qg7
29.f4 Kf7 30.Rg3 h5 31.g6+ Ke7 32.Rg5 Kd7 33.h4 Rh8 34.a4 a5
35.Kd2 Qf6 36.g7 Rg8 37.Qg1 Ke8 38.Rg6 Qe7 39.Qg5 Kd7 40.c3
Qf7 41.Ke3 Qe7 42.Kf3 Qf7 43.Kg3 Kd6 44.Kh3 Kc7 45.Qh6 Kd6
46.Rf6 Qe7 47.Rxf5 Rxg7 48.Rxh5 Rf7 49.Qg5 Kd7 50.Rh8 Rg7
51.Qe5 Qf7 52.Rb8 Kc6 53.Rc8+ Kb7 54.Qb8+ Ka6 55.Qa8+ Qa7
56.Qc6 1-0

[Event "Ch USA"]
[Site "Greenville (USA)"]
[Date "1983.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Boris Markovich Kogan"]
[Black "James E Tarjan"]
[ECO "A05"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "80"]

1.Nf3 Nf6 2.g3 g6 3.b3 Bg7 4.Bb2 c5 5.c4 d6 6.Bg2 e5 7.O-O O-O
8.d3 Nc6 9.Nc3 Rb8 10.Ne1 Be6 11.Nd5 Qd7 12.Nc2 Bh3 13.Nxf6+
Bxf6 14.Bxh3 Qxh3 15.Ne3 Bg7 16.Nd5 Qd7 17.e3 f5 18.f4 Ne7
19.fxe5 dxe5 20.e4 Rf7 21.Qe2 Nc6 22.Rf2 Rbf8 23.Raf1 Qd6
24.Qd2 Qd8 25.a3 Nd4 26.Bxd4 cxd4 27.b4 h5 28.h3 Kh7 29.Qe2
Qg5 30.Kh2 f4 31.gxf4 exf4 32.Qf3 Be5 33.Rg2 Qh4 34.Kh1 g5
35.Rh2 Rh8 36.c5 Kg8 37.Rff2 g4 38.Rhg2 Kf8 39.Qd1 f3 40.Kg1
fxg2 0-1

[Event "10, Berkley ch-USA"]
[Site "10, Berkley ch-USA"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Lev Alburt"]
[Black "Boris Markovich Kogan"]
[ECO "D11"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "80"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Qb3 e6 5.g3 Be7 6.Bg2 O-O 7.O-O
Nbd7 8.Rd1 b6 9.Nc3 Bb7 10.cxd5 cxd5 11.Bf4 Rc8 12.Rac1 Nh5
13.Be3 Nhf6 14.Rc2 Rc4 15.a3 Qb8 16.Bg5 h6 17.Bxf6 Nxf6 18.Ne5
Rfc8 19.Rdc1 R4c7 20.Nb5 Rxc2 21.Rxc2 a6 22.Nc3 b5 23.Na2 Bd6
24.Nc1 Bxe5 25.dxe5 Nd7 26.Rxc8+ Qxc8 27.Nd3 d4 28.Bxb7 Qxb7
29.Qc2 g5 30.f3 Kg7 31.b4 g4 32.f4 Qe4 33.Qc7 Qxe2 34.Nf2 Nf8
35.Qd8 Qe3 36.Qf6+ Kg8 37.Qxh6 Qc1+ 38.Kg2 Qc6+ 39.Kg1 Qc1+
40.Kg2 Qc6+ 1/2-1/2

[Event "Ch USA"]
[Site "USA"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Joel Benjamin"]
[Black "Boris Markovich Kogan"]
[ECO "B63"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "83"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2
Be7 8.O-O-O Nxd4 9.Qxd4 O-O 10.f3 Qa5 11.Qd2 Rd8 12.Kb1 Qc7
13.Nb5 Qd7 14.g4 a6 15.Nd4 b5 16.h4 Bb7 17.Be3 Qe8 18.h5 e5
19.Nf5 d5 20.Nxg7 Nxe4 21.fxe4 Kxg7 22.Bh6+ Kg8 23.Qc3 dxe4
24.Be2 Qc6 25.Qxe5 Qxh6 26.Qxe7 Bd5 27.Rhf1 Re8 28.Qc5 Be6
29.g5 Qf8 30.Qe3 Rac8 31.Rd4 Qc5 32.c3 a5 33.g6 hxg6 34.hxg6
fxg6 35.Qh6 Bf5 36.Bg4 Qf8 37.Qg5 Qg7 38.Bxf5 gxf5 39.Qxf5 Rc7
40.Qd5+ Rf7 41.Rdd1 Qh7 42.Rg1+ 1-0

[Event "Ch USA"]
[Site "USA"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "75"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Walter Shawn Browne"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "94"]

1.d4 Nf6 2.Nf3 e6 3.g3 d5 4.Bg2 c5 5.c4 dxc4 6.Qa4+ Bd7 7.Qxc4
Bc6 8.O-O Nbd7 9.dxc5 Bxc5 10.Nc3 Rc8 11.Qd3 O-O 12.e4 Ng4
13.Qe2 Nde5 14.Nxe5 Nxe5 15.Be3 Qb6 16.Bxc5 Qxc5 17.Rac1 Rfd8
18.Rfd1 Rxd1+ 19.Qxd1 Qb6 20.Qc2 h6 21.Rd1 Qc5 22.Qe2 b5 23.a3
a5 24.Nd5 Nc4 25.Nf4 Qe7 26.h4 Rd8 27.Rxd8+ Qxd8 28.Qc2 Qd4
29.b3 Qd2 30.Qb1 Nxa3 31.Qa1 Nc2 32.Qe5 Qd4 33.Qb8+ Kh7 34.Qc7
Qd1+ 35.Kh2 Qd7 36.Qxa5 e5 37.Nd5 Nd4 38.Qc3 Qa7 39.b4 f6
40.Qb2 Qa4 41.Nc3 Qa8 42.Nd5 Qa7 43.f4 Be8 44.fxe5 fxe5 45.Qf2
Bh5 46.Bh3 Qf7 47.Qxf7 Bxf7 1/2-1/2

[Event "Ch USA"]
[Site "USA"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "17"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Nick DeFirmian"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "81"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.e3 Qb6 5.Qc1 Nc6 6.Bxf6 gxf6 7.c3
d5 8.Nbd2 Bd7 9.Be2 Rc8 10.O-O cxd4 11.exd4 Bh6 12.Qb1 O-O
13.Nb3 Ne7 14.Nc5 Bc6 15.g3 Kh8 16.a4 Rg8 17.Nh4 Qc7 18.Bd3
Ng6 19.Nxg6+ hxg6 20.Re1 e5 21.Bf1 e4 22.a5 f5 23.b4 b6
24.axb6 axb6 25.Na6 Qd6 26.Qb2 f4 27.b5 Bd7 28.Nb4 fxg3
29.fxg3 f5 30.Ra7 Ra8 31.Rea1 Rxa7 32.Rxa7 f4 33.gxf4 Rf8
34.Qg2 Rxf4 35.Be2 Rf7 36.Qg3 Bf4 37.Qh4+ Kg7 38.Nc6 Be3+
39.Kh1 Bxc6 40.Rxf7+ Kxf7 41.Qh7+ 1/2-1/2

[Event "Ch USA"]
[Site "USA"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "132"]
[Result "1/2-1/2"]
[White "Roman Dzindzichashvili"]
[Black "Boris Markovich Kogan"]
[ECO "A56"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "77"]

1.d4 Nf6 2.c4 c5 3.d5 g6 4.Nc3 Bg7 5.e4 d6 6.Nf3 O-O 7.Bd3 e6
8.O-O exd5 9.exd5 Bg4 10.h3 Bxf3 11.Qxf3 Nfd7 12.Qd1 Ne5
13.Be2 f5 14.f4 Nf7 15.Bd2 Nd7 16.Bd3 h5 17.g3 a6 18.Kg2 Nh6
19.Re1 Rf7 20.Qf3 Nf8 21.Rab1 Re7 22.b4 Rxe1 23.Bxe1 cxb4
24.Rxb4 Qa5 25.Na4 Re8 26.Bd2 Bd4 27.Qd1 Qc7 28.Qb3 b6 29.c5
bxc5 30.Rb7 Qd8 31.Qb6 Qf6 32.Qc6 Re7 33.Rxe7 Qxe7 34.Nb6 Nf7
35.Nc8 Qf6 36.Qxa6 Bc3 37.Be3 Bd4 38.Bd2 Bc3 39.Be3 1/2-1/2

[Event "New York blitz"]
[Site "New York blitz"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Boris Markovich Kogan"]
[Black "John Fedorowicz"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "61"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 Nc6 6.O-O Bc5
7.Nxc6 bxc6 8.c4 O-O 9.Qc2 Be7 10.e4 e5 11.Nc3 d6 12.b3 Qc7
13.Bb2 Nd7 14.Rad1 a5 15.Na4 Nb6 16.Nxb6 Qxb6 17.c5 Qc7 18.Ba3
dxc5 19.Bxc5 a4 20.b4 Ba6 21.Rfe1 Bb5 22.a3 h6 23.Bf1 Rfd8
24.Bxe7 Qxe7 25.Bxb5 cxb5 26.Qc6 Rab8 27.Rxd8+ Qxd8 28.Rc1 Qe7
29.Rc5 Qe8 30.Qxe8+ Rxe8 31.Rxb5 1-0

[Event "Ch USA"]
[Site "USA"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "52"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "John Fedorowicz"]
[ECO "A40"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "89"]

1.d4 g6 2.Nf3 Bg7 3.g3 c5 4.d5 d6 5.Bg2 Nf6 6.O-O O-O 7.Nc3
Na6 8.h3 Nc7 9.a4 e6 10.dxe6 fxe6 11.e4 d5 12.e5 Nd7 13.Re1
Rf5 14.g4 Rf8 15.Bg5 Qe8 16.Qd2 Nb6 17.b3 Bd7 18.Bh4 Bc6
19.Bg3 d4 20.Ne4 Bxe4 21.Rxe4 Nbd5 22.Ne1 Nc3 23.Rf4 Rxf4
24.Bxf4 N7d5 25.Bg3 Rc8 26.Nd3 c4 27.Nb2 cxb3 28.cxb3 Qe7
29.Nc4 Qb4 30.Nd6 Rd8 31.Qc2 Rf8 32.Bxd5 Nxd5 33.Rd1 Nc3
34.Rd3 Qc5 35.Nc4 Qc6 36.f4 a6 37.Qg2 Qc5 38.a5 Nd5 39.Qe4 Nc3
40.Qxb7 Ne2+ 41.Kh2 Nxf4 42.Bxf4 Rxf4 43.Qa8+ Rf8 44.Qe4 Rd8
45.Kg2 1/2-1/2

[Event "Berkeley ch-USA"]
[Site "13"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Dimitri Gurevich"]
[Black "Boris Markovich Kogan"]
[ECO "D10"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "115"]

1.d4 d5 2.c4 c6 3.e3 Bf5 4.Qb3 Qc7 5.cxd5 cxd5 6.Nc3 e6 7.e4
Bxe4 8.Bf4 Qb6 9.f3 Bg6 10.Nb5 Na6 11.Rc1 Kd8 12.h4 f6 13.Kf2
Rc8 14.Rxc8+ Kxc8 15.Be2 e5 16.Be3 exd4 17.Nxd4 Qxb3 18.axb3
Nc7 19.Nh3 Bd6 20.Rc1 Kb8 21.h5 Be8 22.Nf5 Be5 23.Bc5 Ne6
24.Bd6+ Bxd6 25.Nxd6 Ne7 26.Bd3 Bd7 27.Re1 Nc6 28.Bf5 Ncd4
29.Bxe6 Nxe6 30.Rd1 Bc6 31.Re1 Bd7 32.Rd1 Bc6 33.Re1 Nc5
34.Re7 Rd8 35.Nf5 Rd7 36.Re8+ Kc7 37.Nd4 a5 38.Nf4 Kb6 39.Rh8
h6 40.Ke3 Re7+ 41.Kd2 Rf7 42.Rg8 Kc7 43.Nf5 Nxb3+ 44.Kc3 Nc5
45.Nxg7 Bd7 46.Nxd5+ Kd6 47.Nb6 f5 48.Nc4+ Ke7 49.Kd4 Nb3+
50.Ke5 Nc5 51.Nxa5 Nd3+ 52.Kd4 Nxb2 53.Nxb7 Kf6 54.Nc5 Na4
55.Nge6 Nxc5 56.Nxc5 Ke7 57.Ke5 Bb5 58.Ne6 1-0

[Event "New York it"]
[Site "06"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Boris Markovich Kogan"]
[Black "Igor Vasilievich Ivanov"]
[ECO "D78"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "73"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 dxc4 7.Na3
c3 8.bxc3 c5 9.Nc4 Be6 10.Nce5 Bd5 11.Ba3 Nc6 12.Nxc6 Bxc6
13.Qb3 Rc8 14.Rac1 Ne4 15.dxc5 e5 16.Rfd1 Qe7 17.Ne1 Bh6 18.e3
Rfe8 19.Qc4 Ng5 20.Bxc6 Rxc6 21.Qh4 Bg7 22.Rd6 e4 23.Qg4 h5
24.Qd1 Be5 25.h4 Ne6 26.Rxc6 bxc6 27.Qa4 f5 28.Qxc6 Rd8 29.Rb1
Qd7 30.Qa6 Rc8 31.Nc2 Bxc3 32.Qc4 Bg7 33.Nd4 Bxd4 34.exd4 Rd8
35.c6 Qd5 36.Qxd5 Rxd5 37.Rb7 1-0

[Event "Ch USA"]
[Site "Berkeley (USA)"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Boris Markovich Kogan"]
[Black "Sergey Kudrin"]
[ECO "E00"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "93"]

1.d4 Nf6 2.c4 e6 3.g3 c5 4.Nf3 cxd4 5.Nxd4 d5 6.Bg2 e5 7.Nf3
d4 8.O-O Nc6 9.e3 Bc5 10.exd4 exd4 11.Nbd2 O-O 12.Nb3 Qb6
13.Bf4 Re8 14.Re1 Bg4 15.Rxe8+ Rxe8 16.h3 Bh5 17.Nxc5 Qxc5
18.Qb3 Bxf3 19.Bxf3 g5 20.Qb5 Qxb5 21.cxb5 gxf4 22.bxc6 bxc6
23.gxf4 c5 24.Rc1 Rb8 25.b3 Rb5 26.Kf1 Kf8 27.Ke2 Ke7 28.Kd3
Kd6 29.Re1 Ra5 30.a4 Ra6 31.Re5 Rb6 32.Kc2 Rb4 33.Rf5 d3
34.Kc3 Ke6 35.Rxc5 Rxf4 36.Bb7 Nd7 37.Ra5 Kd6 38.Rxa7 Nc5
39.b4 Nxb7 40.Rxb7 Rxf2 41.Kxd3 Rf3+ 42.Ke4 Rxh3 43.a5 h5
44.Kd4 h4 45.Rxf7 Rh1 46.Rf6+ Kc7 47.Kc5 1-0

[Event "USA 38/76"]
[Site "ch"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Boris Markovich Kogan"]
[Black "Larry Christiansen"]
[ECO "A49"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "89"]

1.d4 g6 2.g3 Bg7 3.Bg2 Nf6 4.Nf3 O-O 5.O-O d6 6.b3 Nc6 7.Bb2
Bf5 8.d5 Nb4 9.Nd4 Be4 10.c4 Bxg2 11.Kxg2 Qd7 12.Nc3 e5 13.Nc2
Nxc2 14.Qxc2 h5 15.e4 Ng4 16.Rae1 f5 17.f3 Nh6 18.exf5 gxf5
19.f4 Rae8 20.fxe5 dxe5 21.Qe2 f4 22.Qxh5 Rf5 23.Qf3 Ref8
24.Bc1 fxg3 25.Qxg3 Rxf1 26.Rxf1 Rxf1 27.Kxf1 Qf5+ 28.Ke1 Ng4
29.Qg2 e4 30.Nxe4 Ne5 31.Bh6 Ng6 32.Bxg7 Nh4 33.Qg4 Nf3+
34.Kf2 Qxg4 35.Nf6+ Kxg7 36.Nxg4 Nd4 37.Ke3 Nc2+ 38.Ke4 Nb4
39.a3 Nc2 40.Kd3 Ne1+ 41.Ke4 Nc2 42.Ne3 Nxa3 43.Kd3 b5 44.Kc3
Kf6 45.Kb2 1-0

[Event "Ch USA"]
[Site "USA"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "19"]
[Result "0-1"]
[White "Kamran G Shirazi"]
[Black "Boris Markovich Kogan"]
[ECO "C73"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "82"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.Bxc6+ bxc6 6.d4 exd4
7.Nxd4 c5 8.Ne2 Nf6 9.c4 Be7 10.Nbc3 O-O 11.O-O Nd7 12.b3 Bf6
13.Bb2 Re8 14.Qc2 Bb7 15.Rad1 Nf8 16.f3 Ng6 17.Kh1 Qe7 18.Nd5
Bxd5 19.Rxd5 Bxb2 20.Qxb2 a5 21.Nc3 Ne5 22.Qc1 Nc6 23.Rg5 f6
24.Rg3 Qf7 25.f4 a4 26.e5 axb3 27.exf6 Qxf6 28.Nd5 Qf7 29.axb3
Nd4 30.Qb1 c6 31.Ne3 Rab8 32.Ng4 Kh8 33.Rh3 Qf5 34.Qxf5 Nxf5
35.Nf2 Nd4 36.Rb1 Rxb3 37.Rhxb3 Nxb3 38.g3 Nd2 39.Rc1 Re2
40.Kg1 Kg8 41.Kg2 d5 0-1

[Event "NY International"]
[Site "NY International"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Kevin Spraggett"]
[Black "Boris Markovich Kogan"]
[ECO "A20"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "88"]

1.c4 e5 2.g3 g6 3.Bg2 Bg7 4.Nc3 Ne7 5.e4 Nbc6 6.Nge2 d6 7.d3
O-O 8.O-O f5 9.exf5 Nxf5 10.Rb1 Nfd4 11.Nxd4 Nxd4 12.b4 a6
13.Be3 Rb8 14.a4 Be6 15.h3 h6 16.Kh2 g5 17.b5 a5 18.b6 c6
19.Ne4 Qd7 20.Bc1 Rf7 21.Ba3 Bf8 22.Qh5 Bf5 23.f4 exf4 24.gxf4
d5 25.Bxf8 Rbxf8 26.cxd5 cxd5 27.Nc3 Bxd3 28.Qxh6 Bxb1 29.Rxb1
Nf5 30.Qxg5+ Kh8 31.Nxd5 Qxa4 32.Rc1 Qd4 33.Rc7 a4 34.Qh5+ Kg8
35.Qg6+ Rg7 36.Qe6+ Kh7 37.Qe2 a3 38.Qh5+ Kg8 39.Rxg7+ Qxg7
40.Qe2 Qb2 41.Qg4+ Kh7 42.Qh5+ Nh6 43.Ne7 Rf6 44.Nd5 Rg6 0-1

[Event "World Open"]
[Site "World Open"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Kevin Spraggett"]
[Black "Boris Markovich Kogan"]
[ECO "A11"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "58"]

1.c4 c6 2.Nf3 Nf6 3.d4 d5 4.Qc2 g6 5.e3 Bg7 6.Nbd2 O-O 7.Bd3
c5 8.cxd5 cxd4 9.e4 e6 10.dxe6 Bxe6 11.O-O Nc6 12.a3 Rc8
13.Qb1 Ng4 14.b4 Nce5 15.Bb2 Nxd3 16.Qxd3 Rc3 17.Qb1 Qb6
18.Bxc3 dxc3 19.Nb3 c2 20.Qxc2 Bxb3 21.Qxb3 Bxa1 22.h3 Nxf2
23.Rxf2 Rc8 24.Qa2 Bg7 25.Kh2 Qd6+ 26.g3 Rc3 27.e5 Qe6 28.Qd2
Bxe5 29.Re2 Rxf3 0-1

[Event "Ch USA"]
[Site "Berkeley (USA)"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "James E Tarjan"]
[ECO "E06"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "95"]

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O dxc4 7.Qc2
a6 8.Qxc4 b5 9.Qc2 Bb7 10.Bf4 Bd6 11.Nbd2 Nbd7 12.a4 Qb8
13.Ne5 Bxg2 14.Kxg2 c5 15.Ndf3 Rc8 16.Nxd7 Nxd7 17.Bxd6 Qxd6
18.axb5 axb5 19.dxc5 Qxc5 20.Qxc5 Nxc5 21.Rxa8 Rxa8 22.Rc1 Ne4
23.Nd4 Nd6 24.Rc6 Rd8 25.Rb6 Kf8 26.e3 Ke8 27.b3 Kd7 28.Nxb5
Ne4 29.Nd4 Kc7 30.Rc6+ Kb7 31.Rc4 Nd6 32.Rc2 Ra8 33.f4 Ra1
34.g4 Rb1 35.h4 Ne8 36.g5 Nc7 37.h5 Nd5 38.Re2 Kc8 39.g6 hxg6
40.hxg6 fxg6 41.Nxe6 Rxb3 42.Kf3 Ra3 43.Re1 Kd7 44.Nf8+ Ke7
45.Nxg6+ Kf6 46.Nf8 Kf5 47.Kf2 Nxe3 48.Rxe3 1/2-1/2

[Event "Cardinal Open"]
[Site "Columbus OH"]
[Date "1984.??.??"]
[EventDate "1984.01"]
[Round "1"]
[Result "1-0"]
[White "Boris Belopolsky"]
[Black "Boris Markovich Kogan"]
[ECO "B30"]
[WhiteElo "2320"]
[BlackElo "2430"]
[PlyCount "113"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 Qc7 4.O-O e6 5.c3 Nf6 6.Re1 d5 7.e5
Nd7 8.d4 a6 9.Bf1 Be7 10.Bg5 Qd8 11.Bxe7 Qxe7 12.a3 c4 13.Nbd2
b5 14.g3 Nb6 15.Rc1 Bd7 16.Nh4 g5 17.Ng2 O-O-O 18.f4 h6 19.Nf3
Rdg8 20.Rc2 Kb7 21.Rf2 g4 22.Nfh4 h5 23.Ne3 a5 24.Bg2 b4
25.axb4 axb4 26.f5 Qg5 27.b3 cxb3 28.c4 dxc4 29.d5 exd5
30.Nxd5 Rd8 31.Qe2 Na5 32.Nxb4+ Bc6 33.Nxc6 Nxc6 34.Qe4 Rd5
35.e6 Re8 36.Re3 Qf6 37.Rd2 fxe6 38.Rxd5 exd5 39.Qxe8 b2
40.Re1 Qd4+ 41.Kh1 Qd3 42.Bf1 Qc2 43.f6 b1=Q 44.f7 Qbb2 45.Ng2
h4 46.gxh4 Qa3 47.f8=Q Qxf8 48.Qxf8 d4 49.h5 d3 50.Qg7+ Ka6
51.h6 d2 52.Ra1+ Kb5 53.h7 d1=Q 54. h8=Q Qdd2 55.Qh5+ Nd5
56.Qgxg4 Kc5 57.Rd1 1-0

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[EventDate "?"]
[Round "17"]
[Result "1/2-1/2"]
[White "Robert Eugene Byrne"]
[Black "Boris Markovich Kogan"]
[ECO "C75"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "32"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.d4 Nge7 7.O-O
Ng6 8.Nbd2 Be7 9.Re1 O-O 10.Nf1 Bg4 11.Bxc6 Nh4 12.N1d2 bxc6
13.h3 Nxf3+ 14.Nxf3 Bxf3 15.Qxf3 Bf6 16.Be3 Qb8 1/2-1/2

[Event "01, Estes Park ch-USA"]
[Site "01, Estes Park ch-USA"]
[Date "1985.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Lev Alburt"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "110"]

1.d4 Nf6 2.Nf3 c5 3.d5 b5 4.Bg5 Ne4 5.Bh4 Qa5+ 6.c3 b4 7.Qc2
f5 8.Nfd2 bxc3 9.bxc3 Bb7 10.Nxe4 fxe4 11.Qxe4 e6 12.Qc2 Bxd5
13.e4 Bc6 14.a4 Bd6 15.Bg3 Qc7 16.Nd2 O-O 17.Bd3 Bf4 18.O-O
Bb7 19.a5 Ba6 20.Bxa6 Nxa6 21.Qd3 Qc6 22.Bxf4 Rxf4 23.g3 Rff8
24.e5 c4 25.Qd4 Nc7 26.Qxc4 Qxc4 27.Nxc4 Nd5 28.Nd6 Nxc3
29.Ra3 Ne2+ 30.Kg2 Nd4 31.Rd1 Nc6 32.Nc4 Nb8 33.Nd6 a6 34.Rc3
Nc6 35.Rc5 Rab8 36.Rd2 Rb1 37.Ne4 Rb7 38.f4 h6 39.h4 Rfb8
40.Kh3 Kf8 41.Rc1 Ke7 42.Nc5 Ra7 43.Rd6 Nxa5 44.Rxa6 Rxa6
45.Nxa6 Rb6 46.Nc5 Rc6 47.Kg4 Kf7 48.h5 Nb7 49.Nd3 Rxc1
50.Nxc1 d6 51.Nd3 dxe5 52.fxe5 Nd8 53.Kf4 Ke7 54.Ke4 Nf7
55.Nc5 Nd8 1/2-1/2

[Event "07, Estes Park ch-USA"]
[Site "07, Estes Park ch-USA"]
[Date "1985.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Joel Benjamin"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "28"]

1.d4 Nf6 2.Nf3 d6 3.g3 Bg4 4.Bg2 c6 5.O-O Nbd7 6.c4 e5 7.Nc3
Be7 8.h3 Bxf3 9.Bxf3 O-O 10.b3 Re8 11.Bb2 Qc7 12.Bg2 a6 13.Rc1
Rac8 14.d5 c5 1/2-1/2

[Event "Hollywood"]
[Site "Hollywood"]
[Date "1985.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Joel Benjamin"]
[Black "Boris Markovich Kogan"]
[ECO "C16"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "55"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 b6 7.Qg4
O-O 8.Bg5 Nd7 9.Bd3 f5 10.Qg3 Qe8 11.h4 Kh8 12.Nh3 Rg8 13.h5
h6 14.Bh4 c5 15.Nf4 Nf8 16.Qe3 c4 17.Be2 b5 18.Kd2 a5 19.f3
Kh7 20.g4 fxg4 21.fxg4 Rh8 22.Rhf1 Bd7 23.Rf3 Nc6 24.Rg1 Ra7
25.g5 hxg5 26.Bxg5 Ne7 27.Bxe7 Qxe7 28.h6 1-0

[Event "Ch USA"]
[Site "Estes Park (USA)"]
[Date "1985.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "John Fedorowicz"]
[Black "Boris Markovich Kogan"]
[ECO "C42"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "69"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O
Nc6 8.c4 Nf6 9.h3 O-O 10.Nc3 dxc4 11.Bxc4 Na5 12.Bd3 Be6
13.Re1 c5 14.Be3 c4 15.Bc2 Nd5 16.Bd2 Nc6 17.Qb1 Nf6 18.Ng5 h6
19.Rxe6 hxg5 20.Re1 g4 21.hxg4 Qxd4 22.Ne4 Nxg4 23.Bc3 Qd5
24.Qd1 Qh5 25.Ng3 Qg5 26.Re4 Nge5 27.Qe2 Bd6 28.Rd1 Bc7 29.Bd2
Qe7 30.Qh5 g6 31.Qh6 f5 32.Rh4 Qg7 33.Qxg7+ Kxg7 34.Bc3 Ba5
35.Rxc4 1/2-1/2

[Event "Estes Park ch-USA"]
[Site "11"]
[Date "1985.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Dimitri Gurevich"]
[Black "Boris Markovich Kogan"]
[ECO "E42"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "55"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 d5 6.a3 Bxc3+ 7.Nxc3
cxd4 8.exd4 dxc4 9.Bxc4 Nc6 10.Be3 O-O 11.O-O b6 12.Qd3 Bb7
13.Rad1 h6 14.Ba2 Ne7 15.f3 Nfd5 16.Bf2 Nf5 17.Ne4 a5 18.Rfe1
Ba6 19.Qd2 Rc8 20.Rc1 Qd7 21.Rxc8 Rxc8 22.Rc1 Rxc1+ 23.Qxc1
Qb5 24.h4 Qe2 25.Bxd5 exd5 26.Ng3 Nxg3 27.Bxg3 Bc4 28.Kh2
1/2-1/2

[Event "Estes Park ch-USA"]
[Site "12"]
[Date "1985.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Larry Christiansen"]
[ECO "A40"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "159"]

1.d4 e6 2.g3 c5 3.Nf3 b6 4.d5 exd5 5.Qxd5 Nc6 6.Ne5 Qf6 7.Nxc6
dxc6 8.Qe4+ Ne7 9.Bg2 g6 10.O-O Bg7 11.c3 O-O 12.Nd2 Bf5
13.Qa4 Qe6 14.Nf3 h6 15.Re1 a5 16.e4 Bg4 17.Bf4 g5 18.Be3 Ng6
19.Qb3 a4 20.Qc2 a3 21.Nd2 axb2 22.Qxb2 Ne5 23.Qc2 Ra3 24.Rec1
Rfa8 25.Nb3 R3a4 26.Rcb1 Rc4 27.Kh1 Nf3 28.h3 Bh5 29.Qe2 Rxc3
30.Bxf3 Bxf3+ 31.Qxf3 Rxb3 32.Rxb3 Bxa1 33.Rxb6 Qxh3+ 34.Kg1
Rxa2 35.Bxc5 Be5 36.Rb1 Qd7 37.Kg2 Rd2 38.Rc1 Rd3 39.Qf5 Qxf5
40.exf5 Rc3 41.Rxc3 Bxc3 42.g4 Bg7 43.Kf3 Bf8 44.Bd4 Kh7
45.Be5 Bc5 46.Kg3 Be7 47.f4 c5 48.fxg5 Bxg5 49.Kf3 Bd2 50.Ke2
Bb4 51.Kd3 h5 52.gxh5 Kh6 53.Kc4 Kxh5 54.Kd5 Kg4 55.f6 Kg5
56.Bb2 Kf5 57.Ba1 Bd2 58.Kxc5 Bg5 59.Bc3 Bxf6 60.Be1 Ke4
61.Kd6 Bg5 62.Bf2 f5 63.Ke6 f4 64.Be1 f3 65.Bf2 Be3 66.Be1 Bg1
67.Bg3 Bh2 68.Bf2 Kf4 69.Bc5 Kg3 70.Kf5 Kh3 71.Bd4 Bg3 72.Be3
Bd6 73.Bd4 Kg3 74.Bb6 Bb4 75.Bd4 Be1 76.Bc5 Bf2 77.Bd6+ Kh3
78.Kf4 Kg2 79.Kg4 Be3 80.Bg3 1/2-1/2

[Event "Estes Park ch"]
[Site "Estes Park ch"]
[Date "1985.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Kamran G Shirazi"]
[Black "Boris Markovich Kogan"]
[ECO "C43"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "59"]

1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 d5 5.Nxe5 Nd7 6.Nxd7 Bxd7
7.O-O Qf6 8.Nc3 Qxd4 9.Qh5 Nf6 10.Re1+ Be7 11.Qg5 Qg4 12.Rxe7+
Kxe7 13.Nxd5+ Kf8 14.Nxf6 gxf6 15.Qxf6 Rg8 16.Bh6+ Ke8 17.Re1+
Be6 18.g3 Kd7 19.Bxh7 Rge8 20.Bf4 Qh5 21.Qc3 Re7 22.Be4 c6
23.Bf3 Qh3 24.Qc5 Rc8 25.Bg5 f6 26.Qd4+ Ke8 27.Qxf6 Rcc7
28.Rxe6 Qxe6 29.Bh5+ Kd7 30.Bg4 1-0

[Event "Reykjavik"]
[Site "Reykjavik"]
[Date "1986.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Utut Adianto"]
[Black "Boris Markovich Kogan"]
[ECO "D02"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "97"]

1.d4 d5 2.Nf3 c6 3.g3 Nf6 4.Bg2 Bf5 5.O-O e6 6.c4 Nbd7 7.b3
Be7 8.Nc3 h6 9.Bb2 O-O 10.e3 Ne4 11.Qe2 Qa5 12.Rfc1 Ba3
13.Bxa3 Qxa3 14.Ne1 Nxc3 15.Rxc3 Rfe8 16.Rac1 Nf6 17.h3 Ne4
18.Bxe4 dxe4 19.g4 Bh7 20.Rd1 Rad8 21.Rc2 Qd6 22.Rcd2 f5 23.f4
exf3 24.Nxf3 Qg3+ 25.Qg2 Qxg2+ 26.Kxg2 fxg4 27.hxg4 Be4 28.Kg3
Bxf3 29.Kxf3 Rf8+ 30.Ke4 Rf6 31.b4 Rg6 32.Rg2 Rg5 33.Rh1 Kf7
34.a4 a6 35.Rh5 Rg6 36.b5 axb5 37.cxb5 Ra8 38.bxc6 bxc6 39.a5
Ke7 40.Rc5 Kd6 41.Kd3 Rf6 42.Rb2 Ra6 43.Rb7 Rg6 44.e4 e5
45.Rxe5 Re6 46.Rxe6+ Kxe6 47.Rxg7 Kf6 48.Rc7 Kg5 49.e5 1-0

[Event "Ch USA"]
[Site "Estes Park (USA)"]
[Date "1986.??.??"]
[EventDate "?"]
[Round "9"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Lev Alburt"]
[ECO "A34"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "55"]

1.c4 Nf6 2.Nc3 c5 3.g3 e6 4.Nf3 d5 5.cxd5 Nxd5 6.Bg2 Be7 7.O-O
O-O 8.Nxd5 exd5 9.d4 Nc6 10.dxc5 Bxc5 11.Bg5 f6 12.Bd2 Bf5
13.e3 Be4 14.Bc3 Qb6 15.Rc1 Rfe8 16.a3 a5 17.Qa4 Nb4 18.Bd4
Bxd4 19.Nxd4 Nd3 20.Bxe4 dxe4 21.Qc4+ Kh8 22.Qc7 Qxc7 23.Rxc7
b6 24.b3 Rac8 25.Rb7 Rb8 26.Rc7 Rbc8 27.Rb7 Rb8 28.Rc7 1/2-1/2

[Event "New York (USA)"]
[Site "New York (USA)"]
[Date "1986.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Boris Markovich Kogan"]
[Black "Lev Alburt"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "61"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.e3 Qb6 5.Qc1 Nc6 6.Bxf6 gxf6 7.c3
d5 8.Nbd2 Bd7 9.Qc2 Rc8 10.Qb3 f5 11.g3 c4 12.Qxb6 axb6 13.Ne5
Nxe5 14.dxe5 Ra8 15.a3 Ba4 16.Rc1 Ra5 17.Be2 Rg8 18.f4 Kd7
19.Kf2 Be7 20.Bd1 Bxd1 21.Rhxd1 Kc6 22.Nf3 Kb5 23.Nd4+ Ka4
24.Rb1 Raa8 25.b3+ cxb3 26.Rxb3 Bc5 27.Rdb1 Rac8 28.Rb5 h5
29.Ne2 Bxa3 30.R5b3 b5 31.Nd4 1-0

[Event "Estes Park USA ch"]
[Site "Estes Park USA ch"]
[Date "1986.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Joel Benjamin"]
[Black "Boris Markovich Kogan"]
[ECO "D15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "75"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 a6 5.Qb3 e6 6.Bg5 Nbd7 7.e3
Be7 8.Rd1 O-O 9.Bd3 b5 10.cxd5 cxd5 11.Bxf6 Nxf6 12.O-O Bb7
13.Rc1 Rc8 14.Qd1 Ne4 15.Ne2 Bd6 16.Bb1 Qe7 17.Ne5 f6 18.Nd3
Rc4 19.a3 a5 20.f3 Ng5 21.Qd2 b4 22.axb4 Bxb4 23.Nxb4 Qxb4
24.Qxb4 Rxb4 25.Nf4 Re8 26.Rf2 Ba6 27.h4 Nf7 28.Rc6 Bc8
29.Rfc2 Rb8 30.Rc7 Ba6 31.R2c6 Bc4 32.Bxh7+ Kxh7 33.Rxf7 Rxb2
34.Rcc7 Rg8 35.Nxe6 Re2 36.Rxf6 Bd3 37.e4 Kh8 38.Rf5 1-0

[Event "Ch USA"]
[Site "Estes Park (USA)"]
[Date "1986.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Nick DeFirmian"]
[Black "Boris Markovich Kogan"]
[ECO "C42"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "64"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Bd6 7.O-O
O-O 8.c4 c6 9.Qc2 Na6 10.a3 f5 11.c5 Be7 12.Ne5 Nc7 13.f3 Ne6
14.Be3 Bg5 15.f4 Bh6 16.Nc3 Bd7 17.b4 Be8 18.g4 g6 19.g5 Bg7
20.Ne2 Rc8 21.Qa4 a6 22.Rad1 Rc7 23.Qb3 h6 24.h4 hxg5 25.hxg5
N4xg5 26.fxg5 Bxe5 27.dxe5 f4 28.Bc1 Qxg5+ 29.Kf2 Qh4+ 30.Kg2
f3 31.Rxf3 Rxf3 32.Kxf3 Rf7+ 0-1

[Event "Estes Park ch-US W"]
[Site "Estes Park ch-US W"]
[Date "1986.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "John Fedorowicz"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "116"]

1.d4 Nf6 2.Nf3 c5 3.e3 b6 4.Bd3 Bb7 5.O-O g6 6.Nbd2 Bg7 7.c3
O-O 8.b4 d6 9.bxc5 dxc5 10.Bb2 Nc6 11.Qe2 Qc7 12.e4 cxd4
13.cxd4 Nh5 14.g3 Rad8 15.Qe3 Qd7 16.Nb3 Nb4 17.Bb1 Rc8 18.Qd2
a5 19.a3 Na6 20.d5 Nf6 21.Bd3 a4 22.Nbd4 Nc5 23.Rfe1 Nxd3
24.Qxd3 Ng4 25.Qe2 e5 26.Nc2 f5 27.Nb4 fxe4 28.Qxe4 Qf5
29.Qxf5 Rxf5 30.h3 Rxf3 31.hxg4 Bf8 32.Bxe5 Bc5 33.Ra2 Rxa3
34.Rxa3 Bxb4 35.Raa1 Bxe1 36.Rxe1 Bxd5 37.f4 Be6 38.Bd4 Rc6
39.Rb1 Bb3 40.Kf2 b5 41.f5 Bc4 42.Rc1 gxf5 43.gxf5 Kf7 44.Rh1
h6 45.g4 a3 46.g5 hxg5 47.Rh7+ Ke8 48.Ra7 a2 49.Ke3 b4 50.Rb7
b3 51.Rb8+ Kd7 52.Rb7+ Rc7 53.Rb6 Rc6 54.Rb7+ Kc8 55.Rb4 Bd5
56.Bg7 Rc1 57.Ra4 Rf1 58.f6 b2 1/2-1/2

[Event "Estes Park"]
[Site "02"]
[Date "1986.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Dimitri Gurevich"]
[Black "Boris Markovich Kogan"]
[ECO "A15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "120"]

1.Nf3 Nf6 2.c4 c6 3.Nc3 d5 4.e3 e6 5.b3 Bd6 6.Bb2 O-O 7.Be2
Qe7 8.O-O Nbd7 9.Qc2 a6 10.d4 e5 11.cxd5 cxd5 12.dxe5 Nxe5
13.Rad1 Be6 14.Nxe5 Bxe5 15.f4 Bc7 16.Bf3 Qc5 17.Qf2 Rad8
18.Na4 Qe7 19.Bd4 Ng4 20.Qb2 f5 21.Bxg4 fxg4 22.Bc5 Bd6 23.Qd4
Bxc5 24.Qxc5 Qf7 25.f5 Bd7 26.Nb6 Bc6 27.Rd4 h5 28.a4 Kh8
29.Rfd1 Rde8 30.Nxd5 Re5 31.e4 Rfe8 32.Qc2 Bxd5 33.Rxd5 Rxe4
34.Rd8 Qe7 35.Rxe8+ Qxe8 36.Qc3 Re3 37.Qa5 Kh7 38.f6 gxf6
39.Qf5+ Kg7 40.Rf1 Qg6 41.Qc8 Qe4 42.Qd7+ Kg6 43.Qc8 Qd5
44.Qc2+ Kg7 45.Rxf6 Kxf6 46.Qf2+ Rf3 47.gxf3 gxf3 48.Qe3 Qg5+
49.Kf2 Qg2+ 50.Ke1 Qh1+ 51.Kd2 Qxh2+ 52.Kc1 Kf5 53.Qd3+ Kg5
54.Qd5+ Kg4 55.Qe6+ Kg3 56.Qg6+ Kf2 57.Qb6+ Kg2 58.Qxb7 Qf4+
59.Kd1 h4 60.Qxa6 f2 0-1

[Event "Ch USA"]
[Site "USA"]
[Date "1986.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Sergey Kudrin"]
[Black "Boris Markovich Kogan"]
[ECO "C07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "119"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 Qxd5 5.Ngf3 cxd4 6.Bc4 Qc5
7.O-O Nc6 8.Qe2 Qb6 9.Nb3 Nge7 10.a4 a6 11.Rd1 Ng6 12.Nbxd4
Nxd4 13.Rxd4 Be7 14.c3 O-O 15.Be3 Qc7 16.Bb3 Bd7 17.Rc4 Qa5
18.Rd1 Bc6 19.Bc2 Qh5 20.Nd4 Qxe2 21.Nxe2 e5 22.Bb6 f5 23.f3
Rae8 24.Kf2 Bg5 25.Bc5 Rf6 26.Be3 h6 27.Rc5 Nh4 28.Bxg5 hxg5
29.g3 Ng6 30.a5 Kf8 31.c4 f4 32.Be4 fxg3 33.Nxg3 Nh4 34.Rd3 g4
35.Bxc6 bxc6 36.Ne4 Rf4 37.Rxc6 Nxf3 38.Ke3 Nxh2 39.Rxa6 Nf1+
40.Ke2 Rxe4+ 41.Kxf1 Rxc4 42.Rb6 Rc2 43.a6 Ra8 44.Re3 Kf7
45.Rxe5 Rd8 46.a7 g3 47.Rf5+ Ke7 48.Kg1 g2 49.Rf2 Rxf2 50.Kxf2
Rd1 51.Kxg2 Ra1 52.Rb7+ Kd6 53.Rxg7 Kc6 54.Kf3 Kb6 55.Ke4 Rxa7
56.Rxa7 Kxa7 57.Kd5 Kb6 58.Kc4 Kc6 59.Kb4 Kb6 60.b3 1-0

[Event "Estes Park"]
[Site "03"]
[Date "1986.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Boris Markovich Kogan"]
[Black "Larry Christiansen"]
[ECO "A04"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "73"]

1.Nf3 c5 2.c4 Nc6 3.Nc3 g6 4.e3 Bg7 5.d4 Nf6 6.d5 Nb4 7.e4 O-O
8.a3 Na6 9.Bd3 d6 10.O-O e6 11.Nd2 Re8 12.h3 Nc7 13.a4 Na6
14.Bb1 Nb4 15.f4 exd5 16.exd5 Ng4 17.Nf3 Ne3 18.Bxe3 Rxe3
19.Qd2 Qe7 20.Kf2 Rxf3+ 21.Kxf3 Bd7 22.Kg3 Re8 23.Kh2 Bd4
24.Be4 f5 25.Bc2 Be3 26.Qd1 Qf6 27.Bb3 h5 28.a5 Re7 29.Rf3 Be8
30.Qf1 g5 31.fxg5 Qe5+ 32.Kh1 f4 33.g3 fxg3 34.Rf8+ Kh7
35.Rxe8 Rxe8 36.Qf7+ Kh8 37.g6 1-0

[Event "?"]
[Site "?"]
[Date "1986.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Boris Markovich Kogan"]
[Black "Kamran G Shirazi"]
[ECO "A53"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "92"]

1.d4 Nf6 2.c4 d6 3.Nc3 Bf5 4.Nf3 g6 5.g3 Ne4 6.Nxe4 Bxe4 7.Bg2
Bg7 8.O-O O-O 9.Be3 c5 10.Nh4 Bxg2 11.Nxg2 Qb6 12.dxc5 dxc5
13.Rb1 Rd8 14.Qc1 Nc6 15.Nf4 Qa5 16.a3 e6 17.b4 cxb4 18.axb4
Qa4 19.Nd3 b6 20.c5 b5 21.Bf4 e5 22.Bg5 Rd4 23.Bh6 Qa2 24.Bxg7
Kxg7 25.Rb2 Qd5 26.Qb1 h5 27.h4 g5 28.Ne1 e4 29.Ng2 Rd8 30.Qc1
f6 31.Qc3 Kg6 32.hxg5 fxg5 33.Ne3 Qe6 34.Kg2 h4 35.Rh1 hxg3
36.fxg3 Ne5 37.Rc2 Nc4 38.Nxc4 Rxc4 39.Qb2 e3 40.Rhc1 Qe4+
41.Kg1 Rcd4 42.Qa1 Rh8 43.Qa6+ Kf5 44.Rf1+ Kg4 45.Rf3 Rd1+
46.Kg2 Rdh1 0-1

[Event "World Open"]
[Site "Philadelphia"]
[Date "1986.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Yasser Seirawan"]
[Black "Boris Markovich Kogan"]
[ECO "D11"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "77"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qb3 e6 5. g3 Nbd7 6. Bg2 Be7
7. O-O O-O 8. Nc3 b6 9. Rd1 Bb7 10. cxd5 cxd5 11. Bf4 Nh5
12. Bd2 Nhf6 13. a4 a6 14. Rac1 Rc8 15. e3 Ne4 16. Be1 Nd6
17. Bf1 Nc4 18. Qa2 Rc7 19. Ne2 Qb8 20. b3 Na5 21. Rxc7 Qxc7
22. Rc1 Qb8 23. Nf4 Rc8 24. Rxc8+ Qxc8 25. Qb1 h6 26. Bh3 Nf8
27. Nd3 Nc6 28. b4 Nb8 29. Bf1 Bc6 30. b5 axb5 31. axb5 Be8
32. Bb4 Ng6 33. Nde5 Nxe5 34. Nxe5 Bxb4 35. Qxb4 f6 36. Nd3
Qc7 37. Bh3 Kf7 38. Nf4 Bd7 39. Bxe6+ 1-0

[Event "Bermuda"]
[Site "?"]
[Date "1986.??.??"]
[EventDate "2008.12.25"]
[Round "?"]
[Result "1-0"]
[White "Charles Hertan"]
[Black "Boris Markovich Kogan"]
[ECO "C03"]
[WhiteElo "2395"]
[BlackElo "2445"]
[PlyCount "69"]

1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. Bd3 c4
7. Be2 Nc6 8. b3 cxb3 9. axb3 Bb4 10. Bb2 Nge7 11. O-O O-O
12. Ne5 Bf5 13. Ndf3 Rc8 14. c4 Ng6 15. Nxc6 Rxc6 16. Bc1 Re8
17. Be3 Be4 18. Nd2 Nh4 19. Nxe4 dxe4 20. g3 Nf5 21. c5 Qf6
22. Ra4 Bc3 23. Rc4 Ba5 24. d5 Rcc8 25. d6 Rcd8 26. b4 b5
27. Rd4 Bc7 28. Rd5 Bb8 29. Qd2 Re5 30. Rxe5 Qxe5 31. Bf4 Qe6
32. Bg4 g6 33. Rd1 Qc4 34. Bxf5 gxf5 35. Be5 1-0

[Event "02, Estes Park ch-USA"]
[Site "02, Estes Park ch-USA"]
[Date "1987.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Joel Benjamin"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "34"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O h6 6.c3 Be7 7.Nbd2
O-O 8.Qc2 d6 9.a4 a6 10.axb5 axb5 11.Rxa8 Bxa8 12.e4 Nbd7
13.Re1 c5 14.dxc5 dxc5 15.b3 Bc6 16.c4 bxc4 17.Nxc4 Qa8
1/2-1/2

[Event "Estes Park ch-US W"]
[Site "Estes Park ch-US W"]
[Date "1987.??.??"]
[EventDate "?"]
[Round "8"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Nick DeFirmian"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "42"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.c3 Be7 7.Bg5
Qb6 8.Nbd2 cxd4 9.cxd4 Nc6 10.e3 h6 11.Bxf6 Bxf6 12.Rc1 d6
13.Ne4 Be7 14.Nc3 d5 15.Ne1 O-O 16.Nd3 Rac8 17.Qg4 Bd6 18.Rfd1
Qa5 19.a3 b4 20.axb4 Nxb4 21.Ra1 Qd8 1/2-1/2

[Event "Estes Park ch-US W"]
[Site "Estes Park ch-US W"]
[Date "1987.??.??"]
[EventDate "?"]
[Round "1"]
[Result "0-1"]
[White "Boris Markovich Kogan"]
[Black "John Fedorowicz"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "74"]

1.d4 Nf6 2.Nf3 c5 3.c3 b6 4.dxc5 bxc5 5.e4 Bb7 6.e5 Nd5 7.Bd3
e6 8.O-O Be7 9.Qe2 f5 10.a3 O-O 11.c4 Nb6 12.Nc3 Nc6 13.b3 Qe8
14.Bb2 Qg6 15.Ne1 Nd4 16.Qd1 d6 17.exd6 Bxd6 18.Nb5 Nxb5
19.cxb5 Qh6 20.g3 e5 21.Qe2 e4 22.Bc2 f4 23.Bxe4 Rae8 24.f3
fxg3 25.hxg3 Bxe4 26.fxe4 Rxf1+ 27.Qxf1 Qe3+ 28.Qf2 Qxb3
29.Nf3 Rf8 30.Rf1 Nc4 31.Bc1 Ne5 32.Bf4 Nd3 33.Qe3 Bxf4
34.gxf4 Rxf4 35.e5 Qd5 36.Kg2 Re4 37.Qd2 Rxe5 0-1

[Event "Estes Park USA ch"]
[Site "Estes Park USA ch"]
[Date "1987.??.??"]
[EventDate "?"]
[Round "6"]
[Result "0-1"]
[White "Boris Markovich Kogan"]
[Black "Boris Gulko"]
[ECO "A49"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "120"]

1.Nf3 g6 2.d4 Nf6 3.g3 c5 4.dxc5 Qa5+ 5.Nc3 Bg7 6.Nd2 Qxc5
7.Bg2 d6 8.Nb3 Qc7 9.Bg5 Nbd7 10.e4 h6 11.Bf4 Nb6 12.O-O Nc4
13.Qe2 a6 14.Nd1 Bg4 15.f3 Bd7 16.c3 Rc8 17.Re1 O-O 18.Bc1 e5
19.Ne3 Nb6 20.Bd2 Be6 21.Rad1 d5 22.exd5 Nbxd5 23.Nxd5 Nxd5
24.Qf2 Rfd8 25.Bc1 b5 26.Bf1 Kh7 27.Kh1 Rd6 28.Nd2 f5 29.a3
Rcd8 30.Be2 Bf8 31.Nf1 R6d7 32.Qg2 Nb6 33.Rxd7+ Rxd7 34.Rd1
Bb3 35.Rxd7+ Qxd7 36.Qf2 Nc4 37.Qe1 Nb6 38.Nd2 Bd5 39.Qd1 Qc6
40.Nf1 Bc5 41.Ne3 Be6 42.Kg2 Nd5 43.Nxd5 Bxd5 44.h4 e4 45.Bf4
Qe6 46.Kh2 Kg7 47.Kg2 exf3 48.Bxf3 Bxf3+ 49.Qxf3 Qe4 50.g4 h5
51.gxh5 gxh5 52.Kg3 Qxf3+ 53.Kxf3 Kf6 54.Ke2 Ke6 55.Kd3 Be7
56.Bg3 Kd5 57.Be1 a5 58.b3 a4 59.b4 f4 60.Bf2 Bd8 0-1

[Event "Estes Park USA ch"]
[Site "12"]
[Date "1987.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Dimitri Gurevich"]
[Black "Boris Markovich Kogan"]
[ECO "D43"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "86"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.Qb3 Be7 6.g3 O-O 7.Bg2
Nbd7 8.O-O b6 9.Bf4 Bb7 10.cxd5 exd5 11.Rfd1 Nh5 12.Be5 f6
13.Bf4 Nxf4 14.gxf4 f5 15.Rac1 Kh8 16.e3 Bd6 17.a3 h6 18.Ne2
g5 19.Ne5 Bxe5 20.dxe5 Qe7 21.Nd4 Nc5 22.Qc2 gxf4 23.exf4 Qf7
24.b4 Ne6 25.Nxe6 Qxe6 26.Rd3 Ba6 27.Rg3 Bc4 28.Bf1 b5 29.Qd1
Rg8 30.Bh3 Rxg3+ 31.hxg3 Qg6 32.Kh2 h5 33.Qd4 Qe6 34.Re1 Kh7
35.Bxf5+ Qxf5 36.e6 Qg4 37.e7 Re8 38.Qf6 Qg6 39.Qd4 Qg4 40.Re5
Bf1 41.Kg1 Qh3 42.Rxh5+ Qxh5 43.Qf6 Be2 0-1

[Event "Ch USA"]
[Site "Estes Park (USA)"]
[Date "1987.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Boris Markovich Kogan"]
[Black "Sergey Kudrin"]
[ECO "A31"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "46"]

1.Nf3 Nf6 2.c4 c5 3.d4 cxd4 4.Nxd4 b6 5.Nc3 Bb7 6.f3 d6 7.e4
e6 8.Be2 g6 9.O-O Nbd7 10.Be3 Be7 11.Qd2 O-O 12.Rfd1 Qc7
13.Rac1 Rac8 14.Bf1 Qb8 15.Qf2 Rfe8 16.Kh1 Bd8 17.Rc2 Ne5
18.b3 h6 19.Rdc1 Nfd7 20.Qd2 Bf6 21.Nde2 Bd8 22.Ng3 Nf6 23.Qf2
Ba8 1/2-1/2

[Event "Estes Park ch-USA"]
[Site "07"]
[Date "1987.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Larry Christiansen"]
[Black "Boris Markovich Kogan"]
[ECO "D15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "119"]

1.Nf3 d5 2.d4 c6 3.c4 Nf6 4.Nc3 Qb6 5.g3 Bf5 6.Nh4 Bg6 7.Nxg6
hxg6 8.Qb3 e6 9.Bg2 Nbd7 10.O-O Be7 11.Rd1 O-O 12.e4 Nxe4
13.Nxe4 dxe4 14.Bxe4 Nf6 15.Bf3 Qxb3 16.axb3 Rfd8 17.Be3 Rd7
18.g4 Bd8 19.b4 a6 20.g5 Nh7 21.h4 Be7 22.d5 cxd5 23.cxd5 exd5
24.Rxd5 Rad8 25.Rxd7 Rxd7 26.Rc1 Bxb4 27.Rc8+ Nf8 28.Rb8 a5
29.b3 Rd3 30.Rxb7 Rxb3 31.Bd5 Rb1+ 32.Kg2 Ne6 33.h5 Rd1 34.Bb3
Rd3 35.Bc4 Rc3 36.Bxe6 fxe6 37.hxg6 e5 38.Rb8+ Bf8 39.Kf3 Rc4
40.Ra8 a4 41.Bb6 a3 42.Ke3 a2 43.Rxa2 Rc8 44.Ke4 Re8 45.Ra6
Bb4 46.Ra7 Bc3 47.Bc5 Be1 48.f3 Bg3 49.Be7 Bf4 50.Rd7 Bg3
51.Kf5 Bf4 52.Rd8 Rxd8 53.Bxd8 Bh2 54.Be7 Bf4 55.Bd6 Bd2
56.Bxe5 Bc1 57.Bd6 Bd2 58.f4 Bc1 59.Be7 Bd2 60.Ke5 1-0

[Event "Estes Park"]
[Site "it"]
[Date "1987.??.??"]
[EventDate "?"]
[Round "3"]
[Result "1/2-1/2"]
[White "Michael Rohde"]
[Black "Boris Markovich Kogan"]
[ECO "D45"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "53"]

1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 a6 6.Ne5 c5 7.cxd5
exd5 8.Be2 Bd6 9.O-O O-O 10.Bf3 Be6 11.b3 cxd4 12.exd4 Qc7
13.Bb2 Bxe5 14.dxe5 Qxe5 15.Na4 Qd6 16.Bxf6 gxf6 17.Nc3 Rd8
18.Bxd5 Nc6 19.Be4 Qe5 20.Qe1 Rac8 21.f4 Qc5+ 22.Kh1 f5
23.Bxc6 Rxc6 24.Rf3 h6 25.Qh4 Qf8 26.h3 Kh7 27.Re1 1/2-1/2

[Event "?"]
[Site "?"]
[Date "1987.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Yasser Seirawan"]
[Black "Boris Markovich Kogan"]
[ECO "D10"]
[WhiteElo "2634"]
[BlackElo "2445"]
[PlyCount "115"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. cxd5 cxd5 5. Bf4 e6 6. e3 Nc6
7. Bd3 a6 8. Rc1 Be7 9. h3 Qa5 10. Nf3 b5 11. O-O Bb7 12. Ne5
Rc8 13. Bb1 O-O 14. Bg5 Qd8 15. f4 Ne8 16. Bxe7 Nxe7 17. Nd3
Bc6 18. Nc5 Ra8 19. Ne2 Nd6 20. g4 Bd7 21. Ng3 f5 22. Rc2 Kh8
23. Rg2 Ng8 24. Qf3 Nf6 25. Nh5 Nxh5 26. gxh5 Rf6 27. Kh2 Ra7
28. Rfg1 Be8 29. Bd3 a5 30. Rg5 Rh6 31. Qg3 Qe7 32. Be2 b4
33. Qh4 Qf8 34. R5g2 Bb5 35. Bf3 Rf6 36. b3 Rc7 37. Rc1 Rc8
38. Rgc2 Qe8 39. Qe1 Qd8 40. a3 bxa3 41. Ra2 Ne4 42. Rxa3 Nxc5
43. Rxc5 Rxc5 44. dxc5 a4 45. Qb4 Bc6 46. bxa4 Rf7 47. a5 Rb7
48. Qd4 h6 49. a6 Ra7 50. Qb2 Kh7 51. Qb6 Qd7 52. Ra5 Kg8
53. Kg3 Kf7 54. Qb8 Ra8 55. a7 Qc8 56. Qb6 Qd7 57. Ra6 Rc8
58. a8=Q 1-0

[Event "Mlada Boleslav (Czechoslovakia)"]
[Site "Mlada Boleslav (Czechoslovakia)"]
[Date "1993.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Boris Markovich Kogan"]
[Black "Yakov Meister"]
[ECO "C55"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "77"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 h6 5.Nc3 d6 6.h3 g6 7.Be3 Bg7
8.Qd2 Qe7 9.g4 Be6 10.Bb5 a6 11.Ba4 Bd7 12.a3 Nd8 13.Bxd7+
Qxd7 14.d4 Nc6 15.O-O-O O-O-O 16.d5 Nb8 17.Qe2 Nh7 18.Nd2 f5
19.f3 h5 20.gxf5 gxf5 21.Nc4 Bf6 22.h4 f4 23.Bf2 Rdg8 24.Rh2
Rg7 25.Na5 Rhg8 26.Ba7 Nf8 27.Qc4 c5 28.dxc6 Nxc6 29.Rhd2 Qc7
30.Nd5 Qxa5 31.Nxf6 Rh8 32.Rxd6 Rc7 33.Ne8 b5 34.Qd5 Kb7
35.Nxc7 Qxc7 36.Rxc6 Qxc6 37.Qxe5 Ng6 38.Qg7+ Kc8 39.Rg1 1-0

[Event "Bayern-chI Bank Hofmann 2nd"]
[Site "Bad Wiessee GER"]
[Date "1998.11.29"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Boris Markovich Kogan"]
[Black "Paul Schmidt"]
[ECO "B11"]
[WhiteElo "2485"]
[BlackElo "2190"]
[PlyCount "74"]

1.e4 c6 2.Nf3 d5 3.Nc3 Bg4 4.h3 Bxf3 5.Qxf3 e6 6.a3 Nd7 7.d4
Qb6 8.exd5 cxd5 9.Bb5 Ngf6 10.O-O Bd6 11.Bh6 Rg8 12.Bxg7 Ke7
13.Bxf6+ Nxf6 14.Rae1 Rg5 15.h4 Rg6 16.Bd3 Rg7 17.Ne2 Rag8
18.g3 Qc7 19.Kg2 Rg4 20.Rg1 Ne4 21.Bxe4 dxe4 22.Qc3 Qb8 23.Qb3
f5 24.Kh3 Qc8 25.Rd1 f4 26.Nxf4 Bxf4 27.d5 exd5 28.Kg2 Qc7
29.Qxd5 Bxg3 30.Kf1 Rf4 31.Qxg8 Rxf2+ 32.Ke1 Rg2+ 33.Kf1 Qf4+
34.Kxg2 Qf2+ 35.Kh3 Qh2+ 36.Kg4 Qxh4+ 37.Kf5 Qf4# 0-1

[Event "Israeli League"]
[Site "Tel Aviv ISR"]
[Date "1999.01.08"]
[EventDate "?"]
[Round "01"]
[Result "1-0"]
[White "Vitali Golod"]
[Black "Boris Markovich Kogan"]
[ECO "E94"]
[WhiteElo "2555"]
[BlackElo "2290"]
[PlyCount "59"]

1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. Nc3 Bg7 5. e4 O-O 6. Be2 e5
7. O-O Nbd7 8. Be3 c6 9. Qc2 Qc7 10. Rad1 Re8 11. d5 Ng4
12. Bg5 f6 13. Bd2 Nh6 14. b4 Rf8 15. dxc6 bxc6 16. Bxh6 Bxh6
17. Qd3 Rf7 18. Qxd6 Qb6 19. c5 Qxb4 20. Qxc6 Bb7 21. Qb5 Qxc3
22. Bc4 Nxc5 23. Qxc5 Kg7 24. Qb5 a6 25. Qa4 Re7 26. Rd3 Qb2
27. Rd7 Rae8 28. Bb3 Bc8 29. Rc7 Kh8 30. Rc2 1-0

[Event "Israeli League"]
[Site "Tel Aviv ISR"]
[Date "1999.01.22"]
[EventDate "?"]
[Round "03"]
[Result "0-1"]
[White "Boris Markovich Kogan"]
[Black "Vadim Milov"]
[ECO "B43"]
[WhiteElo "2290"]
[BlackElo "2640"]
[PlyCount "130"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. a3 Bb7
7. g3 h5 8. h3 Nc6 9. Be3 Nf6 10. Bg2 Ne5 11. O-O Nc4 12. Bc1
Rc8 13. Qe2 Qb6 14. Nf3 Bd6 15. Kh1 h4 16. Nxh4 Be5 17. Nd1
Nd6 18. Nf3 Ndxe4 19. Be3 Qc7 20. Nxe5 Qxe5 21. Kg1 Qd5
22. Qd3 Qf5 23. Bd4 e5 24. Ne3 Qe6 25. Rae1 exd4 26. Ng4 Nxg4
27. hxg4 d5 28. f3 Qh6 29. fxe4 dxe4 30. Rxe4+ Bxe4 31. Qxe4+
Kf8 32. Re1 Qd6 33. Qf5 Rd8 34. Rf1 Qd7 35. Qf4 Qe7 36. Be4
Rh6 37. g5 Re6 38. Qh4 Ke8 39. Qh8+ Qf8 40. Qh7 g6 41. Rf4 Rd7
42. Qh1 Qc5 43. Qh8+ Qf8 44. Qh1 d3 45. cxd3 Qc5+ 46. Kg2 Qxg5
47. Qc1 Kd8 48. Qc3 Qe5 49. Qa5+ Qc7 50. Qb4 Qd6 51. Qa5+ Ke7
52. Qc3 Rc7 53. Qb3 f5 54. Bf3 Qc5 55. Bd1 Rd7 56. Rf2 g5
57. Be2 Qd5+ 58. Qxd5 Rxd5 59. Bf1 Kf6 60. Rc2 g4 61. Rc8 Rdd6
62. Rf8+ Ke5 63. Kf2 Rf6 64. Rxf6 Rxf6 65. Ke3 f4+ 0-1

[Event "Israeli League"]
[Site "Tel Aviv ISR"]
[Date "1999.04.02"]
[EventDate "?"]
[Round "6"]
[Result "0-1"]
[White "Boris Markovich Kogan"]
[Black "Ronen Har-Zvi"]
[ECO "B91"]
[WhiteElo "2445"]
[BlackElo "2512"]
[PlyCount "69"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5
7. Nde2 Nbd7 8. Bg2 b5 9. O-O Bb7 10. h3 Nb6 11. f4 Qc7 12. a3
h5 13. Kh1 Rc8 14. b3 Be7 15. Ra2 O-O 16. Nd5 Nbxd5 17. exd5
Qc5 18. c4 bxc4 19. b4 Qb6 20. Bb2 Qe3 21. Rf3 Qe4 22. fxe5
Nxd5 23. Nf4 Nxf4 24. gxf4 Qf5 25. Rg3 Bh4 26. Re3 Bxg2+
27. Kxg2 Qxf4 28. Bc1 dxe5 29. Qxh5 Qg5+ 30. Qxg5 Bxg5 31. Rc3
Bxc1 32. Rxc1 Rfd8 33. Re2 Rd5 34. Rc3 f6 35. a4 0-1

[Event "Championship Open Fide"]
[Site "Paris"]
[Date "1999.07.22"]
[EventDate "?"]
[Round "6"]
[Result "0-1"]
[White "D Amadou"]
[Black "Boris Markovich Kogan"]
[ECO "A04"]
[WhiteElo "2140"]
[BlackElo "2518"]
[PlyCount "56"]

1.Nf3 d6 2.g3 e5 3.d3 f5 4.Bg2 Nf6 5.O-O Be7 6.c4 Na6 7.Nc3 c6
8.Bd2 O-O 9.a3 Nc7 10.b4 Qe8 11.a4 Qh5 12.b5 f4 13.e3 Bh3
14.exf4 Ng4 15.Re1 Ne6 16.Ne2 g5 17.Bh1 gxf4 18.Qc1 fxg3
19.hxg3 Nxf2 20.Kxf2 Bg4 21.Rg1 Qh2+ 22.Ke1 Rxf3 23.Bg2 Raf8
24.Bh6 Rf2 25.Bxf8 Rxe2+ 26.Kf1 Bg5 27.Qd1 Be3 28.Qxe2 Qxg1#
0-1

[Event "Israeli League"]
[Site "Ramat Aviv ISR"]
[Date "2000.03.31"]
[EventDate "2000.01.22"]
[Round "8"]
[Result "1-0"]
[White "REBEL (Computer)"]
[Black "Boris Markovich Kogan"]
[ECO "B83"]
[WhiteElo "?"]
[BlackElo "2445"]
[PlyCount "138"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Be2 Nf6
7. O-O Be7 8. Be3 O-O 9. f4 Bd7 10. Qe1 Nxd4 11. Bxd4 Bc6
12. Qg3 g6 13. Bf3 b5 14. Rad1 b4 15. e5 Bxf3 16. Qxf3 bxc3
17. exf6 Bxf6 18. Qxc3 Bxd4+ 19. Qxd4 d5 20. Rf2 Qb6 21. c3
Rfc8 22. Qxb6 axb6 23. a3 Ra4 24. g3 Kg7 25. h4 Kf6 26. Re2
Rc5 27. Kf2 Ke7 28. Rde1 h5 29. Ke3 Kd6 30. Kd3 Rc7 31. Re5
Re7 32. Rg5 Ra8 33. c4 Ra5 34. cxd5 Rxd5+ 35. Rxd5+ Kxd5
36. Re4 Kc6 37. Rc4+ Kd5 38. Rd4+ Kc6 39. Ke4 f6 40. Rd8 e5
41. f5 gxf5+ 42. Kxf5 Rg7 43. Kxf6 Rxg3 44. Kxe5 Rg4 45. Rd4
Rg2 46. Rb4 Kc5 47. Kf4 Rg4+ 48. Kf5 Rg2 49. Re4 Kd5 50. b4
Rg8 51. Re6 Rg4 52. Rxb6 Rxh4 53. Kg5 Rh1 54. Rh6 Ra1 55. Ra6
Rh1 56. b5 h4 57. a4 h3 58. Kh4 Kc5 59. Ra8 Kb6 60. Kg4 Kb7
61. Ra6 Kc7 62. a5 Kb7 63. Rf6 Rb1 64. Rb6+ Ka7 65. Kxh3 Rg1
66. Kh4 Rg2 67. Ra6+ Kb7 68. Rf6 Rg1 69. a6+ Ka7 1-0

[Event "Israeli League"]
[Site "Ramat Aviv ISR"]
[Date "2000.03.17"]
[EventDate "?"]
[Round "6"]
[Result "0-1"]
[White "Boris Markovich Kogan"]
[Black "Alon Greenfeld"]
[ECO "A46"]
[WhiteElo "2445"]
[BlackElo "2563"]
[PlyCount "78"]

1. d4 Nf6 2. Nf3 c5 3. e3 g6 4. Bd3 Bg7 5. O-O O-O 6. c3 d6
7. Nbd2 Nc6 8. e4 cxd4 9. cxd4 Nh5 10. Nb3 a5 11. Be3 Bg4
12. Be2 Nf6 13. Nbd2 a4 14. Qb1 e5 15. d5 Nd4 16. Bd1 Nd7
17. Nxd4 exd4 18. Bxd4 Bxd4 19. Bxg4 Ne5 20. Be2 a3 21. b3 Qg5
22. Nc4 Nxc4 23. bxc4 Qe5 24. Bd3 Rfc8 25. Qd1 Bxa1 26. Qxa1
Qb2 27. Rb1 Qxa1 28. Rxa1 b5 29. cxb5 Rc3 30. Rd1 Ra4 31. Kf1
Rb4 32. Ke2 Kf8 33. Rd2 Ke7 34. f4 f6 35. h4 Rc1 36. g3 Kd8
37. Ke3 Rb2 38. Re2 Kc7 39. Rd2 Rg1 0-1

