[Event "Chess Doctor #1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "rnb1kb1r/pp3ppp/8/q2pN1B1/8/3B4/Pp3PPP/1R1Q1RK1 b - - 0 1"]
[PlyCount "0"]

 *

[Event "Chess Doctor #2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "3"]

1. e4 e6 2. Bc4 $2 *

[Event "Chess Doctor #3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "4"]

1. e4 e5 2. Nf3 Bd6 $2 *

[Event "Chess Doctor #4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "3"]

1. e4 e5 2. d3 *

[Event "Chess Doctor #5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "7"]

1. g3 Nf6 2. Bg2 e5 3. d3 Bc5 4. Nd2 $2 *

[Event "Chess Doctor #6a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "11"]

1. e4 e5 2. f4 d5 3. Nf3 dxe4 4. Nxe5 Bd6 5. Bc4 Bxe5 6. fxe5 *

[Event "Chess Doctor #6b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "27"]

1. e4 e5 2. f4 d5 3. Nf3 dxe4 4. Nxe5 Bd6 5. Bc4 Bxe5 6. fxe5 Qd4 7. Qe2 Qxe5
8. d4 Qxd4 9. Nc3 Nf6 10. Be3 Qd8 11. O-O h6 12. Bc5 Nbd7 13. Qxe4+ Nxe4 14.
Bxf7# *

[Event "Chess Doctor #6c"]
[Site "Mobile"]
[Date "1855.??.??"]
[Round "?"]
[White "Meek"]
[Black "Morphy"]
[Result "*"]
[PlyCount "42"]
[EventDate "1855.??.??"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. Ng5 Nh6 6. Nxf7 Nxf7 7. Bxf7+ Kxf7
8. Qh5+ g6 9. Qxc5 d6 10. Qb5 Re8 11. Qb3+ d5 12. f3 Na5 13. Qd3 dxe4 14. fxe4
Qh4+ 15. g3 Rxe4+ 16. Kf2 Qe7 17. Nd2 Re3 18. Qb5 c6 19. Qf1 Bh3 20. Qd1 Rf8
21. Nf3 Ke8 *

[Event "Chess Doctor #7"]
[Site "New York"]
[Date "1857.??.??"]
[Round "?"]
[White "Marache"]
[Black "Morphy"]
[Result "*"]
[PlyCount "38"]
[EventDate "1857.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. e5 d5 8. exd6
Qxd6 9. O-O Nge7 10. Ng5 O-O 11. Bd3 Bf5 12. Bxf5 Nxf5 13. Ba3 Qg6 14. Bxf8
Qxg5 15. Ba3 Rd8 16. Bc1 Qg6 17. Bf4 dxc3 18. Qc2 Ncd4 19. Qe4 Ng3 (19... Ng3
20. Qxg6 Nde2#) *

[Event "Chess Doctor #8"]
[Site "Leipzig"]
[Date "1960.??.??"]
[Round "?"]
[White "Letelier"]
[Black "Fischer"]
[Result "0-1"]
[PlyCount "46"]
[EventDate "1960.??.??"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. e5 Ne8 6. f4 d6 7. Be3 c5 8. dxc5
Nc6 9. cxd6 exd6 10. Ne4 Bf5 11. Ng3 Be6 12. Nf3 Qc7 13. Qb1 dxe5 14. f5 e4 15.
fxe6 exf3 16. gxf3 f5 17. f4 Nf6 18. Be2 Rfe8 19. Kf2 Rxe6 20. Re1 Rae8 21. Bf3
Rxe3 22. Rxe3 Rxe3 23. Kxe3 Qxf4+ 0-1

[Event "Chess Doctor #8c"]
[Site "New Orleans"]
[Date "1850.??.??"]
[Round "?"]
[White "McConnel"]
[Black "Morphy"]
[Result "0-1"]
[PlyCount "21"]
[EventDate "1850.??.??"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. f4 Qb6 6. Nf3 Bd7 7. a3 Nh6 8. b4 cxd4
9. cxd4 Rc8 10. Bb2 Nf5 11. Qd3 0-1

[Event "Chess Doctor #8d"]
[Site "New Orleans"]
[Date "1850.??.??"]
[Round "?"]
[White "McConnel"]
[Black "Morphy"]
[Result "0-1"]
[PlyCount "28"]
[EventDate "1850.??.??"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. f4 Qb6 6. Nf3 Bd7 7. a3 Nh6 8. b4 cxd4
9. cxd4 Rc8 10. Bb2 Nf5 11. Qd3 Bxb4+ 12. axb4 Nxb4 13. Qd2 Rc2 14. Qd1 Ne3 0-1

[Event "Chess Doctor #9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "21"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb6 (6... Bb4+ 7.
Bd2 (7. Nc3 Nxe4) 7... Bxd2+ 8. Nbxd2 d5) 7. d5 Ne7 (7... Na5 8. Bd3 c5 9. d6)
8. e5 Ng4 9. d6 cxd6 10. exd6 Nc6 11. Bg5 *

[Event "Chess Doctor #10"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "16"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. Nc3 Nf6 5. O-O O-O 6. d3 Nd4 7. Nxd4 exd4 8.
Na4 Be7 {9. ... c6 10. ... b5} *

[Event "Chess Doctor #11a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "12"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. dxc5 Bxc5 6. Ne2 Qb6 (6... Qb6 7.
Nf3 Bxf2+ 8. Kd2 Qe3#) (6... Qb6 7. Nc3 Bxf2+ 8. Ke2 Qe3#) *

[Event "Chess Doctor #11b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "20"]

1. d4 d5 2. c4 e6 3. Nc3 Ne7 4. Nf3 Nd7 5. Qc2 c6 6. e4 f6 7. Bd3 g6 8. O-O b6
9. Re1 Bb7 10. exd5 exd5 (10... exd5 11. Bxg6+ hxg6 12. Qxg6#) *

[Event "Chess Doctor #12"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "11"]

1. e4 e6 2. Qe2 Bc5 3. g3 d5 4. Nf3 dxe4 5. Qxe4 Nf6 6. Qe5 (6. Qe5 Bxf2+ 7.
Kxf2 Ng4+) *

[Event "Chess Doctor #13a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "9"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 (5. Qxd4 c5) *

[Event "Chess Doctor #13b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "9"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nxd4 5. Qxd4 *

[Event "Chess Doctor #14a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "7"]

1. e4 e5 2. Nc3 Nf6 3. Bc4 Nc6 4. g4 (4. g4 Nxe4 5. Nxe4 d5) *

[Event "Chess Doctor #14b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "11"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 {diagram} 5. Nxe5 Nxe5 6. d4 *

[Event "Chess Doctor #14c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "9"]

1. c4 e5 2. Nc3 Nc6 3. Nf3 Bc5 {diagram} 4. Nxe5 Nxe5 (4... Bxf2+ 5. Kxf2 Nxe5
6. d4) 5. d4 *

[Event "Chess Doctor #15"]
[Site "USSR"]
[Date "1958.??.??"]
[Round "?"]
[White "Gurgenidze"]
[Black "Tal"]
[Result "0-1"]
[PlyCount "58"]
[EventDate "1958.??.??"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. e4 Bg7 8. Be2
O-O 9. O-O Re8 10. Nd2 Na6 11. Re1 Nc7 12. a4 b6 13. Qc2 Ng4 14. h3 (14. Bxg4
Bxg4 15. Nc4) 14... Nxf2 15. Kxf2 Qh4+ 16. Kf1 Bd4 17. Nd1 Qxh3 18. Bf3 Qh2 19.
Ne3 f5 20. Ndc4 fxe4 21. Bxe4 Ba6 22. Bf3 Re5 23. Ra3 Rae8 24. Bd2 Nxd5 25.
Bxd5+ Rxd5 26. Ke2 Bxe3 27. Rxe3 Bxc4+ {diagram} 28. Qxc4 Qxg2+ 29. Kd1 Qxd2#
0-1

[Event "Chess Doctor #16"]
[Site "?"]
[Date "1956.??.??"]
[Round "?"]
[White "NN"]
[Black "Albertson"]
[Result "*"]
[PlyCount "24"]
[EventDate "1956.??.??"]

1. e4 e5 2. Qh5 {diagram} Nc6 3. Bc4 g6 4. Qf3 Nf6 5. Qb3 Nd4 6. Qd3 d5 7. Bxd5
Nxd5 8. exd5 Bf5 9. Qg3 Nxc2+ 10. Kd1 Nxa1 11. Qxe5+ Qe7 12. Qxh8 Bc2# *

[Event "Chess Doctor #17"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "31"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bg4 8. Nd5
Nd4 9. Nxb4 Nxb5 10. Nd5 Nd4 11. Bxf6 Bxf3 12. Qd2 Qd7 {diagram} 13. Ne7+ Kh8 (
13... Qxe7 14. Bxe7) 14. Bxg7+ Kxg7 15. Qg5+ Kh8 16. Qf6# *

[Event "Chess Doctor #18"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r3k2r/p1q1bppp/2p2n2/3p4/8/2N5/PPP1QPPP/R1B1R1K1 b k - 0 1"]
[PlyCount "4"]

1... Rb8 (1... O-O 2. Qxe7 Rfe8) 2. Bf4 Qxf4 3. Qxe7# *

[Event "Chess Doctor #19"]
[Site "New York"]
[Date "1964.??.??"]
[Round "?"]
[White "Pandolfini"]
[Black "Morrison"]
[Result "1-0"]
[SetUp "1"]
[FEN "r1b1k2r/ppp2pp1/2np3p/4P3/5P2/2P2B2/P1P3PP/R1BR1RK1 b k - 0 1"]
[PlyCount "10"]
[EventDate "1964.??.??"]

1... dxe5 2. Ba3 exf4 3. Rfe1+ Be6 4. Rxe6+ fxe6 5. Bh5+ g6 6. Bxg6# 1-0

[Event "Chess Doctor #20a"]
[Site "New York"]
[Date "1977.??.??"]
[Round "?"]
[White "Joyce"]
[Black "Ross"]
[Result "*"]
[PlyCount "29"]
[EventDate "1977.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 d6 5. dxe5 Nxe5 6. Nxe5 dxe5 7. Qxd8+ Kxd8
8. Bg5 Bb4 9. Bxf6+ gxf6 10. O-O-O+ Bd7 11. Nd5 Be7 12. Bc4 Rg8 13. g3 c6 14.
Nxe7 Kxe7 15. Bxf7 *

[Event "Chess Doctor #20b"]
[Site "St Petersburg"]
[Date "1912.??.??"]
[Round "?"]
[White "Potemkin"]
[Black "Alekhine"]
[Result "*"]
[PlyCount "38"]
[EventDate "1912.??.??"]

1. e4 c5 2. g3 g6 3. Bg2 Bg7 4. Ne2 Nc6 5. c3 Nf6 6. Na3 d5 7. exd5 Nxd5 8. Nc2
O-O 9. d4 cxd4 10. cxd4 Bg4 11. f3 Bf5 12. Ne3 Qa5+ 13. Kf2 Ndb4 14. Nxf5 Qxf5
15. g4 Nd3+ 16. Kg3 (16. Kf1 Qb5) 16... Nxd4 17. gxf5 Nxf5+ 18. Kg4 h5+ 19. Kh3
Nf2# *

[Event "Chess Doctor #21"]
[Site "Paris"]
[Date "1858.??.??"]
[Round "?"]
[White "Paul Morphy"]
[Black "Amateur Team"]
[Result "*"]
[PlyCount "33"]
[EventDate "1858.??.??"]

1. e4 e5 2. Nf3 d6 3. d4 Bg4 4. dxe5 Bxf3 5. Qxf3 dxe5 6. Bc4 Nf6 7. Qb3 Qe7 8.
Nc3 c6 9. Bg5 b5 10. Nxb5 cxb5 11. Bxb5+ Nbd7 {diagram} 12. O-O-O Rd8 13. Rxd7
Rxd7 14. Rd1 Qe6 15. Bxd7+ Nxd7 16. Qb8+ Nxb8 17. Rd8# *

[Event "Chess Doctor #22"]
[Site "Scheveningen"]
[Date "1913.??.??"]
[Round "?"]
[White "Lasker"]
[Black "Englund"]
[Result "1-0"]
[PlyCount "41"]
[EventDate "1913.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Nxe5 Qe7 6. Nf3 Nxe4 7. O-O Nxc3
8. dxc3 Nxf3+ 9. Qxf3 Qc5 10. Re1+ Be7 11. Bd3 d5 12. Be3 Qd6 13. Bf4 Qf6 14.
Qxd5 c6 15. Qe4 Be6 16. Re3 Bc5 17. Be5 Qh6 18. Rg3 Bf8 19. Rd1 O-O-O {diagram}
20. Qxc6+ bxc6 21. Ba6# 1-0

[Event "Chess Doctor #23"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r3k2r/ppqpnppp/2pbp3/8/3P1P2/2PB3N/PP2Q1PP/4RRK1 b k - 0 1"]
[PlyCount "4"]

1... O-O 2. Bxh7+ Kxh7 3. Qh5+ *

[Event "Chess Doctor #23"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r3k2r/ppqpnppp/2pbp3/8/3P1P2/2PB3N/PP2Q1PP/4RRK1 b k - 0 1"]
[PlyCount "4"]

1... O-O (1... O-O-O) 2. Bxh7+ Kxh7 3. Qh5+ *

[Event "Chess Doctor #24"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r3kb1r/ppqn1ppp/2p5/4p3/4P3/2NP4/PPPB1QPP/2KR3R b k - 0 1"]
[PlyCount "0"]

 *

[Event "Chess Doctor #25"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "20"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. a4 Nf6 7. f4 d6 8. Bc4
Qc7 {diagram} 9. O-O Nxd4 10. Qxd4 d5 *

[Event "Chess Doctor #26a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "rn2k2r/1p2qppp/p7/1b2p3/4P3/1P3N1P/P4PP1/R1B1R1K1 b k - 0 1"]
[PlyCount "2"]

1... O-O 2. a4 *

[Event "Chess Doctor #26b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2rqk2r/1p1b1ppp/p1n1pn2/3p4/3P4/2BBPN2/PPQ2PPP/R3K2R w KQk - 0 1"]
[PlyCount "6"]

1. O-O Nb4 2. Qd2 Nxd3 3. Qxd3 Bb5 *

[Event "Chess Doctor #27"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2kr3r/p1p3p1/b4p2/P3p3/1p2Pn2/1N6/2P2PPP/1RB1R1K1 w - - 0 1"]
[PlyCount "8"]

1. Nc5 Ne2+ 2. Kh1 Rxh2+ 3. Kxh2 Rh8+ 4. Bh6 Rxh6# *

[Event "Chess Doctor #28a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2r2rk1/pp3ppp/4b3/3p4/3N4/4P3/PP3PPP/2R1K2R w - - 0 1"]
[PlyCount "0"]

 *

[Event "Chess Doctor #28b-d"]
[Site "Budapest"]
[Date "1928.??.??"]
[Round "?"]
[White "Merenyi"]
[Black "Capablanca"]
[Result "0-1"]
[PlyCount "74"]
[EventDate "1928.??.??"]

1. e4 c5 2. Nf3 g6 3. c3 d5 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. exd5 Qxd5 7. d4 cxd4
8. Qxd4 Qxd4 9. Nxd4 e5 10. Nb5 {diagram} Kd7 11. Ke2 {diagram} Kc6 12. a4 Nd7
13. Be3 a6 14. Rd1 Ngf6 15. Nd2 Rd8 16. Na3 Nd5 17. Ndc4 b6 18. Rd2 Bxa3 19.
Rxa3 Rhe8 20. Nd6 Re7 21. c4 Nxe3 22. fxe3 Nc5 23. Ne4 Rxd2+ 24. Nxd2 a5 25.
Nb1 Rd7 26. Nd2 e4 27. Nb3 Nd3 28. Nd4+ Kc5 29. b3 f5 30. Ra1 {diagram} Rxd4
31. exd4+ Kxd4 32. b4 f4 33. c5 f3+ 34. Kf1 e3 35. Re1 bxc5 36. Rxe3 Kxe3 37.
bxa5 c4 0-1

[Event "Chess Doctor #29a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "7"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 f6 {diagram} 4. d4 *

[Event "Chess Doctor #29b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2rq1rk1/p3b1pp/1pbp4/3Npp2/4P3/4B3/PP1Q1PPP/2R2RK1 w - - 0 1"]
[PlyCount "5"]

1. Nxe7+ Qxe7 2. Rxc6 Rxc6 3. Qd5+ *

[Event "Chess Doctor #30a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "6"]

1. e4 d6 2. d4 Nf6 3. Bd3 Bg4 *

[Event "Chess Doctor #30b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "5rk1/1bq1r2p/pp1p2p1/4p3/4P1n1/1PN5/P2B1PPP/R1Q2RK1 w - - 0 1"]
[PlyCount "9"]

1. f3 Qc5+ 2. Kh1 Nf2+ 3. Rxf2 Qxf2 4. Be3 Qh4 5. Bg5 *

[Event "Chess Doctor #31"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "10"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Be2 e6 5. O-O h6 *

[Event "Chess Doctor #32a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "10"]

1. e4 e5 2. Ne2 Nf6 3. d3 Bc5 4. Bg5 {diagram} Nxe4 5. Bxd8 (5. dxe4 Qxg5) 5...
Bxf2# *

[Event "Chess Doctor #32c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1b2rk1/ppp1qppp/2np1n2/1Bb1p1B1/4P3/2NP1N1P/PPP2PP1/R2Q1RK1 b - - 0 1"]
[PlyCount "8"]

1... Bb4 (1... Be6) 2. Nd5 Qd8 3. Bxf6 gxf6 4. Bxc6 bxc6 5. Nxb4 *

[Event "Chess Doctor #33"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "rn1q1rk1/p1p2pbp/1p2pnp1/3b2B1/3P4/5NP1/PP1NPP1P/R2Q1RK1 w - - 0 1"]
[PlyCount "1"]

1. e4 *

[Event "Chess Doctor #34a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "10"]

1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d3 e5 5. Bg5 {diagram} f6 *

[Event "Chess Doctor #34b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "13"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg4 {diagram} 7. f3
*

[Event "Chess Doctor #34c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "6"]

1. e4 e5 2. Nf3 d6 3. Bb5+ {diagram} c6 *

[Event "Chess Doctor #35a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "17"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Ng4 {diagram} 7.
Bb5+ Nc6 (7... Bd7 8. Qxg4) 8. Nxc6 bxc6 9. Bxc6+ *

[Event "Chess Doctor #35b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1bqkbnr/p2ppp1p/6p1/2p5/4P3/2N5/PPP2PPP/R1BQKB1R w - - 0 1"]
[PlyCount "3"]

1. Qd5 Rb8 2. Qe5 *

[Event "Chess Doctor #36"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "18"]

1. d4 Nf6 2. Bg5 Ne4 3. Bh4 d6 4. Nf3 Nd7 5. c4 c6 6. e3 Ndf6 {diagram} 7. g3
g5 8. Nxg5 Nxg5 9. Bxg5 Qa5+ *

[Event "Chess Doctor #37"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/8/3p4/3k4/3r4/7R/3K4/8 w - - 0 1"]
[PlyCount "4"]

1. Rd3 Ke4 (1... Rxd3+ 2. Kxd3 Kc5 3. Kc3 d5 4. Kd3 d4 5. Kd2 Kc4 6. Kc2 d3+ 7.
Kd2 Kd4 8. Kd1 Ke3 9. Ke1 d2+ 10. Kd1 Kd3) 2. Rxd4+ Kxd4 {The continuation in
text is incorrect since the black pawn is never moved to d5. Black should win
anyway.} *

[Event "Chess Doctor #38"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2b1k2r/2q1ppbp/p5p1/Qp2P1P1/2p5/7P/PPPBB3/2KR4 b - - 0 1"]
[PlyCount "6"]

1... Qxe5 2. Qd8+ Kxd8 3. Ba5+ Ke8 4. Rd8# *

[Event "Chess Doctor #39"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "1k6/8/3b4/2p5/P7/1PP5/6K1/4B3 w - - 0 1"]
[PlyCount "5"]

1. b4 cxb4 2. cxb4 Bxb4 3. Bxb4 *

[Event "Chess Doctor #40"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "7b/8/4k3/3p4/2PB4/3PK3/8/8 b - - 0 1"]
[PlyCount "20"]

1... Bxd4+ (1... dxc4 2. Bxh8 (2. dxc4 Bxd4+ 3. Kxd4 Kd6) 2... cxd3 3. Kxd3) 2.
Kxd4 dxc4 3. Kxc4 Kd6 4. Kd4 Kc6 5. Ke5 Kd7 6. Kd5 Ke7 7. Kc6 Kd8 8. d4 Kc8 9.
d5 Kd8 10. Kd6 Ke8 11. Kc7 *

[Event "Chess Doctor #41"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "7k/pp4p1/2p4p/8/1Q5P/1P6/KPP3P1/3rRr2 b - - 0 1"]
[PlyCount "4"]

1... Rfxe1 (1... Rdxe1 2. Qxe1 Rxe1) 2. Qf8+ Kh7 3. b4 *

[Event "Chess Doctor #42"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1k5/p1p5/1N6/4P3/8/8/P3K3/4R3 b - - 0 1"]
[PlyCount "5"]

1... axb6 (1... cxb6) 2. Ra1 Ra5 3. e6 Re5+ *

[Event "Chess Doctor #43"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "1n4k1/5p1p/4ppN1/8/5PP1/4P2P/6K1/1B6 b - - 0 1"]
[PlyCount "6"]

1... fxg6 (1... hxg6) 2. Ba2 Kf7 3. f5 gxf5 4. gxf5 *

[Event "Chess Doctor #44"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "3r1rk1/1p3ppp/p2p4/3bp3/2P1P3/1P3P2/P5PP/R2R2K1 w - - 0 1"]
[PlyCount "1"]

1. Rxd5 *

[Event "Chess Doctor #45"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/8/8/1p2k3/4q3/4R1K1/8/8 w - - 0 1"]
[PlyCount "9"]

1. Kf2 (1. Rxe4+ Kxe4 2. Kf2 Kd3 3. Ke1 Kc2) 1... b4 2. Ke2 b3 3. Kd1 b2 4.
Rxe4+ Kxe4 5. Kc2 *

[Event "Chess Doctor #46"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/k7/2K5/pp6/1P6/P7/8/8 b - - 0 1"]
[PlyCount "14"]

1... Ka6 2. a4 bxa4 (2... axb4 3. axb5+ Ka5 4. b6 b3 5. b7) 3. b5+ Ka7 4. Kc7
a3 5. b6+ Ka6 6. b7 a2 7. b8=Q a1=Q 8. Qb6# *

[Event "Chess Doctor #47"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "6KB/8/7P/8/3b4/p1k5/8/8 b - - 0 1"]
[PlyCount "6"]

1... a2 (1... Bxh8 2. Kxh8 a2 3. h7 a1=Q 4. Kg8) 2. Bxd4+ Kxd4 3. h7 a1=Q 4.
h8=Q+ *

[Event "Chess Doctor #48a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "1r3rk1/p1p2pp1/2pp3p/4p3/4P3/2PP4/P1P2PPP/1R3RK1 w - - 0 1"]
[PlyCount "2"]

1. Rxb8 (1. Rb3 Rxb3 2. axb3) 1... Rxb8 *

[Event "Chess Doctor #48b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r3r1k1/ppp3p1/3p1n1p/5p2/1P1P1B2/2P3P1/1P3PP1/R3R1K1 w - - 0 1"]
[PlyCount "8"]

1. Rxe8+ (1. Kf1) 1... Rxe8 2. Rxa7 Re1+ 3. Kh2 Ng4+ 4. Kh3 Rh1# *

[Event "Chess Doctor #49"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2r2rk1/5ppp/p3p3/1p1p4/1P1P4/P3P3/5PPP/R4RK1 w - - 0 1"]
[PlyCount "4"]

1. Rfc1 (1. a4 Rc4 2. Rfb1) 1... Rc4 2. Rxc4 bxc4 *

[Event "Chess Doctor #50"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1b2rk1/1p3pp1/p2Np3/3pPn1p/3P1P2/P4N2/1P4PP/2R2RK1 w - - 0 1"]
[PlyCount "8"]

1. Nxc8 (1. Rc7 Nxd6 2. exd6 Rd8 3. Rfc1) 1... Raxc8 2. Rc5 Nxd4 3. Rxc8 Nxf3+
4. Rxf3 Rxc8 *

[Event "Chess Doctor #51"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r4rk1/6pp/8/1p3p2/1p2p3/1P1bP3/P2P1PPP/RN2K2R b - - 0 1"]
[PlyCount "6"]

1... Bxb1 2. Rxb1 Rxa2 3. Ke2 Rd8 4. Rhd1 *

[Event "Chess Doctor #52"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "22"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 {diagram} 5. Ng3 h5 6. Bg5 h4 7. Bxf6
hxg3 8. Be5 Rxh2 9. Rxh2 Qa5+ 10. Qd2 Qxe5+ 11. dxe5 gxh2 {diagram} *

[Event "Chess Doctor #53"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "16"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 d6 6. O-O O-O 7. Bg5 Be6 {
diagram} 8. Bxe6 (8. Nd5 Bxd5 9. Bxd5) 8... fxe6 {diagram} *

[Event "Chess Doctor #54"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "5r2/6p1/4k3/3r1p1P/5P2/1B6/5K2/1R6 w - - 0 1"]
[PlyCount "8"]

1. Rd1 (1. Bxd5+) 1... Rfd8 2. Kg3 R8d7 3. Kh4 R7d6 4. Kg5 Rd7 *

[Event "Chess Doctor #55"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "5bk1/6p1/2Np1pP1/1K2pP2/3PP3/8/8/8 w - - 0 1"]
[PlyCount "2"]

1. dxe5 dxe5 *

[Event "Chess Doctor #56"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2k5/pp6/4pp1p/2p3pn/2P1P3/5PB1/PP3P1P/2K5 b - - 0 1"]
[PlyCount "1"]

1... e5 *

[Event "Chess Doctor #57"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "1r4k1/5ppp/pq6/2p1p3/4P3/1P3P1P/P1Q3P1/3R2K1 w - - 0 1"]
[PlyCount "2"]

1. Rd5 (1. Qc4) 1... c4+ *

[Event "Chess Doctor #58"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/k3b1p1/6P1/2P2P2/p7/4K3/8/6B1 b - - 0 1"]
[PlyCount "4"]

1... Bxc5+ (1... a3 2. Kd3 Bf6 3. Kc2 (3. Bd4 Bxd4 4. Kxd4 a2) 3... a2) 2. Kd3
Bxg1 3. f6 *

[Event "Chess Doctor #59"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "6k1/2r3pp/1Q6/2p5/2q5/4P2P/1R3PP1/6K1 w - - 0 1"]
[PlyCount "1"]

1. Qb8+ (1. Qxc7 Qc1+ 2. Kh2 Qxb2) *

[Event "Chess Doctor #60"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r4rk1/1pq2pbp/2pp2p1/p1n3Q1/4P3/1PN5/PBP2PP1/2KR3R b - - 0 1"]
[PlyCount "6"]

1... Bxc3 2. Bxc3 Nxe4 3. Rxh7 Nxg5 (3... Nxc3 4. Qh6) 4. Rh8# *

[Event "Chess Doctor #61"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "rnb1k2r/ppp1qp1p/3p1n2/8/2BPPB2/2N5/PPP2KP1/R2Q3R b - - 0 1"]
[PlyCount "4"]

1... Nxe4+ 2. Nxe4 Qxe4 3. Re1 *

[Event "Chess Doctor #62"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "8"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Bb5 {diagram} (4. Nxd4 Nxd4 5. Qxd4) 4...
Qa5+ {The moves in the text do not lead to the pictured position. Black must
move the c pawn, not the e pawn.} *

[Event "Chess Doctor #63"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2kr4/ppp4p/2b3pb/4p3/q3n1PP/PQ2N2N/1P2PP2/2K2BR1 w - - 0 1"]
[PlyCount "10"]

1. Qe6+ (1. Qxa4 Bxa4 2. g5) 1... Bd7 2. Qxe5 Qd1+ 3. Kxd1 Ba4+ 4. Ke1 Rd1+ 5.
Nxd1 Bd2# *

[Event "Chess Doctor #64"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r2q1rk1/pppbnpp1/2n1p2p/8/3N4/2P1P1P1/PP3PBP/R1BQ1RK1 w - - 0 1"]
[PlyCount "6"]

1. Nxc6 (1. e4) 1... Nxc6 2. Bxc6 Bxc6 3. Qxd8 Raxd8 {diagram} *

[Event "Chess Doctor #65"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2r3k1/1b1q1ppp/p2pp3/1p6/3NP3/2P4P/PP2QPP1/3R2K1 b - - 0 1"]
[PlyCount "4"]

1... e5 2. Nf5 Rc6 3. Qg4 *

[Event "Chess Doctor #66"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/3b4/6k1/1p6/1P3PP1/3KB3/8/8 w - - 0 1"]
[PlyCount "1"]

1. f5+ (1. g5) *

[Event "Chess Doctor #67"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r3k2r/ppp2ppp/2np4/1Bb5/8/3P1N2/PPP2PPP/R4RK1 b k - 0 1"]
[PlyCount "2"]

1... Kd7 (1... O-O 2. Bxc6 bxc6) 2. d4 *

[Event "Chess Doctor #68"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "12"]

1. d4 Nf6 2. Nd2 e5 3. dxe5 Ng4 4. h3 {diagram} Ne3 5. fxe3 Qh4+ 6. g3 Qxg3# *

[Event "Chess Doctor #69"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "6k1/3r1ppp/8/1R6/Q7/2bqPBPP/3r1PK1/6R1 b - - 0 1"]
[PlyCount "10"]

1... h6 (1... g6) 2. Rb8+ Rd8 3. Qe8+ Rxe8 4. Rxe8+ Kh7 5. Be4+ Qxe4+ 6. Rxe4 *

[Event "Chess Doctor #70"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "5rk1/bpq3pp/p3ppn1/8/2P1P1b1/1PQ2N1P/4BPP1/2B2RK1 b - - 0 1"]
[PlyCount "7"]

1... Bxh3 2. gxh3 Qg3+ 3. Kh1 Qxh3+ 4. Kg1 Nh4 *

[Event "Chess Doctor #71"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/8/1p1k4/8/3K4/1PP5/8/8 w - - 0 1"]
[PlyCount "11"]

1. c4 (1. b4 b5) 1... Kc6 2. b4 Kd6 3. b5 Ke6 4. c5 bxc5+ 5. Kxc5 Kd7 6. Kb6 *

[Event "Chess Doctor #72"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "5k2/5P1p/4K3/8/8/8/7P/8 w - - 0 1"]
[PlyCount "5"]

1. h3 (1. Kf6 h5 (1... h6 2. h4 h5 3. Kg6) 2. h3 h4 3. Kg6) 1... h6 2. h4 h5 3.
Kf6 *

[Event "Chess Doctor #73"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2r2k2/p1pR1p2/1p4p1/7p/7P/1P4P1/P1P2PK1/8 b - - 0 1"]
[PlyCount "1"]

1... f5 (1... Ke8) *

[Event "Chess Doctor #74"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/8/3k4/8/4K3/3P4/8/8 w - - 0 1"]
[PlyCount "8"]

1. d4 (1. Kd4 Kc6 2. Ke5) 1... Ke6 2. d5+ Kd6 3. Kd4 Kd7 4. Kc5 Kc7 *

[Event "Chess Doctor #75"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/6pp/5k2/8/5PP1/8/7P/6K1 w - - 0 1"]
[PlyCount "2"]

1. h4 (1. Kf2) 1... h5 *

[Event "Chess Doctor #76"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1r1b1k1/1p3p1p/p1n3p1/3p4/3N4/2P1B3/PP3PPP/3R1RK1 w - - 0 1"]
[PlyCount "4"]

1. Rde1 (1. Rfe1) 1... Nxd4 2. Bxd4 Bb5 *

[Event "Chess Doctor #77a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "3k4/7R/3KP3/8/6r1/8/8/8 b - - 0 1"]
[PlyCount "2"]

1... Rg8 (1... Rd4+ 2. Ke5 Rd1) 2. Ra7 *

[Event "Chess Doctor #77b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/8/8/3P3r/k7/8/1K6/1R6 w - - 0 1"]
[PlyCount "6"]

1. Rd1 (1. Kc3 Rxd5 2. Kc4) 1... Kb5 2. d6 Rh8 3. d7 Rd8 {Notation in the text
is incorrect since there is no rook on the g file. The notation here matches
the book diagram.} *

[Event "Chess Doctor #78"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "7K/5R2/1k6/8/p7/8/8/8 w - - 0 1"]
[PlyCount "12"]

1. Kg7 (1. Rf5 a3 2. Rf3 a2 3. Ra3) 1... Kc5 2. Ra7 Kb4 3. Kf6 Kb3 4. Ke5 a3 5.
Kd4 a2 6. Kd3 Kb2 *

[Event "Chess Doctor #79"]
[Site "?"]
[Date "1908.??.??"]
[Round "?"]
[White "Siegbert Tarrasch"]
[Black "Emanuel Lasker"]
[Result "0-1"]
[PlyCount "82"]
[EventDate "1908.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 7. Re1 exd4 8.
Nxd4 O-O 9. Nxc6 Bxc6 10. Bxc6 bxc6 11. Ne2 Qd7 12. Ng3 Rfe8 13. b3 Rad8 14.
Bb2 Ng4 {diagram} 15. Bxg7 Nxf2 16. Kxf2 Kxg7 17. Nf5+ Kh8 18. Qd4+ f6 19. Qxa7
Bf8 20. Qd4 Re5 21. Rad1 Rde8 22. Qc3 Qf7 23. Ng3 Bh6 24. Qf3 d5 25. exd5 Be3+
26. Kf1 cxd5 {diagram} 27. Rd3 Qe6 28. Re2 f5 29. Rd1 f4 30. Nh1 d4 31. Nf2 Qa6
32. Nd3 Rg5 33. Ra1 Qh6 34. Ke1 Qxh2 35. Kd1 Qg1+ 36. Ne1 Rge5 37. Qc6 R5e6 38.
Qxc7 R8e7 39. Qd8+ Kg7 40. a4 f3 41. gxf3 {diagram} Bg5 0-1

[Event "Chess Doctor #80"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2b1r1k1/2p2ppp/p4n2/3Pb3/1r5q/1N1BBQ1P/PPR2PP1/R5K1 b - - 0 1"]
[PlyCount "36"]

1... Bg4 2. hxg4 Qh2+ 3. Kf1 Rxb3 4. axb3 Qh1+ 5. Ke2 Qxa1 6. g5 Nd7 7. Bxh7+
Kxh7 8. Qf5+ Kg8 9. Qxd7 Rb8 {diagram} 10. g6 Qh1 11. Qxf7+ Kh8 12. Qf5 Bd6 13.
Rc1 Qh2 14. Rc4 Rf8 15. Qg5 Kg8 16. Rh4 Qe5 {diagram} 17. Rh8+ Kxh8 18. Qh4+
Kg8 19. Qh7# *

[Event "Chess Doctor #81"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1bqkb1r/pppp1ppp/2n2n2/4P3/2Bp4/5N2/PPP2PPP/RNBQK2R b - - 0 1"]
[PlyCount "4"]

1... Bb4+ 2. c3 dxc3 3. bxc3 *

[Event "Chess Doctor #82"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "3n3k/1pqb2pp/p2b4/5p1Q/2Bp1P2/3P3N/PP1Br1PP/6K1 w - - 0 1"]
[PlyCount "6"]

1. Ng5 (1. Qxe2) 1... Rxg2+ 2. Kxg2 Bc6+ 3. Kg1 g6 *

[Event "Chess Doctor #83"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/8/2K1k3/p4ppp/P6P/1P3PP1/8/8 w - - 0 1"]
[PlyCount "4"]

1. hxg5 (1. f4) 1... f4 2. gxf4 h4 *

[Event "Chess Doctor #84"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "6K1/p6P/P7/7k/8/8/6Pr/8 b - - 0 1"]
[PlyCount "12"]

1... Rxg2+ (1... Kg4 2. h8=Q Rxh8+ 3. Kxh8 Kg3 4. Kg7 Kxg2) 2. Kf8 Rf2+ 3. Ke8
Re2+ 4. Kd8 Rd2+ 5. Kc8 Rc2+ 6. Kb8 Rb2+ 7. Kxa7 *

[Event "Chess Doctor #85"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r3nr1k/3b2pp/1q1p4/p2Qp3/4P3/1PN2N2/1PP3PP/R4RK1 w - - 0 1"]
[PlyCount "2"]

1. Rf2 (1. Kh1) 1... Nf6 *

[Event "Chess Doctor #86a-b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "29"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Nb5 Qd8 8.
Bd3 {diagram} c6 9. Nd6+ Ke7 10. Qh5 g6 11. Qh4+ f6 12. Nh3 Na6 13. Nf4 g5 {
diagram} 14. Qxh7+ Rxh7 15. Ng6# *

[Event "Chess Doctor #86c-d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "25"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 a6 7. Qd2 {diagram}
Nd7 8. Be2 g6 (8... h6 9. Ne6 fxe6 10. Bh5+ g6 11. Bxg6# {The text has White
mating with the queen, but it is the bishop that is on the correct diagonal.})
9. Nd5 f6 10. Ne6 Qa5 11. Ndc7+ Kf7 12. Nd8+ Kg7 13. Ne8+ {diagram} *

[Event "Chess Doctor #87"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "6k1/p1q3pp/1p3p2/2b5/4pPP1/4P2P/PPN5/1K4Q1 b - - 0 1"]
[PlyCount "2"]

1... Qxf4 2. b4 *

[Event "Chess Doctor #88"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2k5/8/2p1p3/4P3/2N5/2P2p2/5P2/1bK5 b - - 0 1"]
[PlyCount "6"]

1... Ba2 2. Nd6+ Kd7 3. Kb2 Bd5 4. c4 *

[Event "Chess Doctor #89"]
[Site "?"]
[Date "1849.??.??"]
[Round "?"]
[White "Paul Morphy"]
[Black "Alonzo Morphy"]
[Result "1-0"]
[SetUp "1"]
[FEN "r3k2r/ppp1nppp/1b6/nq6/8/B4N2/P4PPP/1R1QR1K1 b - - 0 1"]
[PlyCount "8"]
[EventDate "1849.??.??"]

1... Qa6 (1... Qd7 2. Rxe7+ Qxe7 3. Bxe7 Kxe7) 2. Rxe7+ Kf8 3. Qd5 Qc4 4. Rxf7+
Kg8 5. Rf8# 1-0

[Event "Chess Doctor #90"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/7P/8/8/1Q6/p2q4/k7/2K5 w - - 0 1"]
[PlyCount "3"]

1. h8=Q (1. Qd2+ Qxd2+ 2. Kxd2) 1... Qc2+ 2. Kxc2 *

[Event "Chess Doctor #91"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r3k2r/pp3pp1/q1nbbn1p/4p3/3pP3/3P1NP1/PP1N1PBP/R1BQR1K1 b - - 0 1"]
[PlyCount "2"]

1... Qxd3 2. Bf1 *

[Event "Chess Doctor #92"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/7k/8/1B3q2/4R3/p6p/P6P/2K5 b - - 0 1"]
[PlyCount "2"]

1... Qxe4 (1... Qxb5) 2. Bd3 *

[Event "Chess Doctor #93"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/2n5/5pk1/R5pp/8/2r2PKP/2P5/1B6 w - - 0 1"]
[PlyCount "8"]

1. Ba2 Rxc2 2. Bb1 h4+ 3. Kg4 f5+ 4. Rxf5 Rg2# *

[Event "Chess Doctor #94"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r2q1rk1/ppp2ppp/2nb4/3p4/3P2b1/2PB1N2/PP3PPP/R1BQ1RK1 w - - 0 1"]
[PlyCount "4"]

1. Bxh7+ Kxh7 2. Ng5+ Qxg5 *

[Event "Chess Doctor #95"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/3p4/8/7p/4P1pP/6K1/8/6k1 b - - 0 1"]
[PlyCount "3"]

1... d6 2. e5 dxe5 *

[Event "Chess Doctor #96"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/pQ1q2pk/4p2p/3r1p2/3P4/4P3/PP3PPP/2R3K1 w - - 0 1"]
[PlyCount "4"]

1. Rc7 Rc5 2. Rxc5 (2. Rxd7 Rc1#) (2. dxc5 Qd1#) 2... Qxb7 *

[Event "Chess Doctor #97"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/1NP4p/7k/6pP/3r2P1/2K5/8/8 b - - 0 1"]
[PlyCount "4"]

1... Rd7 2. c8=Q (2. Nd6 Rxc7+ 3. Kb4 Kg7 4. Ne8+) 2... Rc7+ 3. Qxc7 *

[Event "Chess Doctor #98"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/6p1/6kp/N7/3N3b/2K1B1q1/8/6R1 b - - 0 1"]
[PlyCount "5"]

1... Qxg1 (1... Kh7 2. Rxg3 Bxg3) 2. Bxg1 Be1+ 3. Kd3 Bxa5 *

[Event "Chess Doctor #98"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/6p1/6kp/N7/3N3b/2K1B1q1/8/6R1 b - - 0 1"]
[PlyCount "5"]

1... Qxg1 (1... Kh7 2. Rxg3 Bxg3) 2. Bxg1 Be1+ 3. Kd3 Bxa5 *

[Event "Chess Doctor #99"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "k7/8/1pK5/8/1P6/8/8/8 b - - 0 1"]
[PlyCount "12"]

1... Ka7 (1... b5 2. Kxb5 Kb7) 2. b5 Ka8 3. Kxb6 Kb8 4. Ka6 Ka8 5. b6 Kb8 6. b7
Kc7 7. Ka7 *

[Event "Chess Doctor #100"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/8/8/8/8/5K2/R5p1/5k2 b - - 0 1"]
[PlyCount "1"]

1... g1=N+ *

