Icannos/chess_studies huggingface dataset:
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "7"]
[White "Kholmov, Ratmir"]
[Black "Suetin, Alexei"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "B99"]
[EventDate "1964.??.??"]
[PlyCount "81"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 $5 8. Qf3 Be7 9. O-O-O Qc7 10. g4 b5 11. Bxf6 gxf6 $6 12. h4 $6 ( { Theory proceeds with } 12. f5 Ne5 13. Qh3 O-O { (Gligoric-Fischer, Bled 1959). } ) 12... b4 $1 13. Nce2 Bb7 14. Ng3 d5 15. Bg2 dxe4 16. Nxe4 O-O-O $1 17. Rhe1 $2 ( { Equality keeps } 17. f5 Ne5 18. Qe2 Qb6 19. Nb3 ) 17... h5 $1 18. f5 Ne5 19. Qb3 Qb6 20. c3 Bd5 21. Qc2 hxg4 22. cxb4+ Kb8 23. a3 Rxh4 24. Re2 g3 25. Kb1 Rc8 26. Qd2 Bc4 27. Re3 Bd5 28. b3 Rh2 29. Qe2 Nc6 30. Nc2 Na7 31. Rxg3 Nb5 { White has regained a pawn at the cost of terrible pins. } 32. a4 $5 ( 32. Kb2 Qc7 { Black threatens 33...Qxg3 and 33...Qxc2+ 34.Qxc2 Rxc2+ 35.Kxc2 Bxe4+. } ) 32... Rxc2 $1 33. Kxc2 Nd4+ 34. Rxd4 Qxd4 35. Nc3 Bxg2 36. Rxg2 Rh3 37. Qe1 $2 ( { No piece loses } 37. Rg8+ Ka7 38. Ra8+ Kxa8 39. Qg2+ Ka7 40. Qxh3 Bxb4 { but Black wins anyway. } ) 37... Rxc3+ $1 38. Qxc3 Qe4+ 39. Kc1 Qxg2 40. Qd3 Qc6+ 41. Kb2 { Standings after one turn: Bronstein 4, Kholmov 3 1/2, Geller and
Suetin 3, Korchnoi, Stein and Spassky 2 1/2. Bronstein leads. Stein and
Spassky are trailing. } 0-1
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "8"]
[White "Bronstein, David"]
[Black "Spassky, Boris"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "D27"]
[EventDate "1964.??.??"]
[PlyCount "60"]

1. Nf3 Nf6 2. d4 d5 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. Nbd2 b5 10. Be2 Bb7 11. Nb3 Be7 12. Na5 Bd5 13. Bd2 Nc6 14. Nxc6 Bxc6 15. Nd4 Bd5 16. f3 Bc5 17. Nc2 Ke7 { The players take no risks. } 18. Kf1 Nd7 19. e4 Bb7 20. a4 bxa4 21. Rxa4 Rhc8 22. Bc3 f6 23. h4 Nb6 24. Ra5 Bd6 25. Ne3 Bf4 26. Bd4 Nd7 27. Nc4 Bc6 28. Na3 Bb7 29. Nc4 Bc6 30. Na3 Bb7 1/2-1/2
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "8"]
[White "Geller, Efim"]
[Black "Suetin, Alexei"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "A39"]
[EventDate "1964.??.??"]
[PlyCount "180"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qh4 $5 Rb8 $6 { White is allowed to take the initiative. } ( { The theory will be improved with } 10... Be6 $1 11. Bxb7 Rb8 12. Bd5 Bxd5 13. Nxd5 Nxd5 14. cxd5 Bxb2 { (Smyslov-Geller, Santiago 1965). } ) 11. Bh6 Qa5 12. Bxg7 Kxg7 13. Nd5 Nxd5 14. Bxd5 f6 15. Rfd1 Bf5 16. Qf4 Qb4 17. Qe3 Rfe8 18. b3 a5 19. h4 Qc5 20. Qf4 Bd7 21. Rac1 a4 22. Qd2 axb3 23. axb3 Qb6 24. b4 Rbc8 25. Ra1 Red8 26. Ra3 Bc6 27. Re3 Bxd5 28. cxd5 Rd7 29. Re4 Qa7 30. Kg2 Qa4 31. Rc1 Rxc1 32. Qxc1 Qb5 $1 33. Qc4 Qxc4 34. Rxc4 f5 35. f4 Kf6 $6 ( 35... e6 $1 36. dxe6 Re7 37. Rd4 Rxe6 { equalises. } ) 36. Kf3 e6 37. e4 Ke7 38. b5 exd5 39. exd5 b6 40. Rc6 Rb7 41. g4 h5 42. g5 Kd7 43. Ke3 Rb8 44. Kd2 Rb7 45. Kc2 Rb8 46. Kd3 Rb7 47. Kc3 Rb8 48. Kb3 Rb7 49. Rc1 Rb8 50. Ra1 Re8 $2 ( { White makes no progress in } 50... Kc7 $1 51. Re1 Kd7 52. Re6 Rg8 53. Rf6 Ke7 54. Kb4 Rg7 $1 ) 51. Ra7+ Kc8 52. Ra8+ Kd7 53. Ra7+ Kc8 54. Rg7 Re3+ 55. Kc2 Re4 56. Rxg6 Rxf4 { White has to strike immediately. } 57. Rg8+ $2 ( { Better is } 57. Rxd6 Rxh4 58. Rxb6 Rg4 59. Rc6+ Kb7 { (Konstantinopolsky) Now } 60. Rg6 $1 h4 61. Kc3 $1 h3 62. d6 h2 63. Rh6 Rxg5 64. Rxh2 f4 65. Kc4 { brings a great advantage. } ) 57... Kd7 58. Rb8 Kc7 59. Ra8 Rg4 $1 ( 59... Rxh4 $4 60. g6 Rg4 61. g7 $1 ) 60. Kd3 Rg3+ 61. Ke2 Rg4 62. Kf3 Kd7 63. Rb8 Kc7 64. Ra8 Kd7 65. Rb8 Kc7 66. Rf8 Kd7 67. g6 $5 { At last White makes a choice. } ( 67. Rf7+ Ke8 68. Rb7 Rxh4 69. Rxb6 Kd7 70. Rb7+ Kc8 71. Rh7 Rg4 72. Rxh5 Kc7 { does not win either. } ) 67... Rxg6 68. Rxf5 Rg4 69. Rxh5 Rb4 70. Rh7+ Ke8 71. h5 Rxb5 72. Ke4 Rb1 73. Kf5 Kf8 74. h6 Kg8 75. Rd7 b5 76. Rxd6 b4 77. Ke4 b3 78. Kd3 Rc1 79. Rb6 Rd1+ 80. Kc4 Rc1+ 81. Kd4 Rd1+ 82. Kc5 Rc1+ 83. Kd6 Rb1 84. Rb7 Kh8 85. Ke6 Kg8 { Finally the critical position has been reached. } 86. d6 ( 86. h7+ Kh8 87. Ke5 Re1+ $1 ( 87... b2 $4 88. Kd6 { and zugzwang } ) 88. Kd6 Rb1 $11 ) 86... b2 $1 87. d7 Re1+ 88. Kf6 Rf1+ 89. Ke7 Re1+ 90. Kd8 b1=Q 1/2-1/2
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "8"]
[White "Kholmov, Ratmir"]
[Black "Korchnoi, Viktor"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "B83"]
[EventDate "1964.??.??"]
[PlyCount "83"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. O-O O-O 8. Be3 Nc6 9. f4 Bd7 10. Qe1 Nxd4 11. Bxd4 Bc6 12. Qg3 g6 13. Qe3 Qa5 14. e5 $1 { Kholmov pressures in the centre. } 14... dxe5 15. fxe5 Nd7 16. Rad1 Bc5 17. Bxc5 Qxc5 18. Qxc5 Nxc5 { White has a minimal advantage in the endgame. } 19. Bf3 ( 19. Bb5 $1 Rfd8 20. Bxc6 bxc6 21. a3 { keeps a plus. } ) 19... Rac8 $6 { Black should exchange. } 20. Rd4 ( { Better is } 20. Bxc6 Rxc6 21. a3 ) 20... Rfd8 21. Rf4 Be8 22. Rf2 Kg7 23. h4 b6 24. Kh2 Nd7 25. Re2 Rc5 26. Rfe4 Rdc8 27. Kg3 b5 28. Kf4 Nb6 29. Rd4 Rc4 30. Rxc4 Nxc4 31. Nd1 Rd8 32. Re1 Rd4+ 33. Kg3 Rd2 34. b3 Na3 35. c3 Kf8 ( { The effort } 35... Rxa2 36. Nf2 $1 Rb2 37. Ng4 Rxb3 38. Nf6 Kf8 39. Rd1 Nc4 40. Rd8 Nxe5 41. Rxe8+ Kg7 42. Ne4 { steers toward equality. } ) 36. Nf2 $1 Rxa2 37. Ng4 a5 38. Rd1 Ke7 39. Nf6 Rc2 40. Ng8+ Kf8 41. Nf6 Ke7 42. Ng8+ 1/2-1/2
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "9"]
[White "Korchnoi, Viktor"]
[Black "Geller, Efim"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "D55"]
[EventDate "1964.??.??"]
[PlyCount "107"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. Nf3 O-O 6. e3 h6 7. Bxf6 Bxf6 8. Rc1 c6 9. Qc2 Nd7 10. cxd5 cxd5 ( { The defence reorganises } 10... exd5 $1 11. Bd3 Be7 ) 11. Bd3 Nb6 12. O-O Bd7 13. e4 $1 Rc8 ( 13... dxe4 $6 14. Bxe4 Rb8 { is ugly. } ) 14. e5 Be7 15. Qe2 Nc4 $1 16. g3 Qb6 17. Rc2 Rc7 18. Rfc1 Rfc8 19. Nb1 a6 20. h4 Qa5 21. a3 Qb6 22. Kh2 Na5 23. Rxc7 Rxc7 24. Rxc7 Qxc7 25. Qd1 Nc4 26. Qb3 Bb5 27. Nc3 { The next move costs a pawn. } 27... Nd2 $2 ( 27... Nxa3 28. Nxb5 Nxb5 29. Bxb5 axb5 30. Qxb5 $11 ) 28. Nxd2 Bxd3 29. Nxd5 exd5 30. Qxd3 Qc1 31. b4 a5 32. bxa5 Qxa3 33. Qxa3 Bxa3 { Black sets his hopes on the strength of the bishop. } 34. f4 Bb4 35. Nb3 h5 36. f5 g6 37. f6 Kf8 38. Kg2 Ke8 39. Kf3 Bc3 40. g4 Be1 41. gxh5 gxh5 42. Nc5 Bxa5 43. Nxb7 Bb4 44. Nd6+ $1 Kf8 { Even exchange loses. } 45. Nf5 Be1 46. Ng7 Bxh4 47. Nxh5 Ke8 48. Nf4 Kd7 49. Nxd5 Be1 50. Ke4 Bd2 51. Ne3 Bc1 52. Nf5 Ba3 53. d5 Bb4 54. Ng7 1-0
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "9"]
[White "Spassky, Boris"]
[Black "Kholmov, Ratmir"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "A26"]
[EventDate "1964.??.??"]
[PlyCount "87"]

1. c4 e5 2. Nc3 d6 3. g3 Nc6 4. Bg2 g6 5. Nf3 Bg7 6. O-O Nge7 7. Rb1 O-O 8. d3 h6 $5 9. b4 f5 { Both players have their strategic aims. White charges on the
queenside and Black on the other flank. } 10. b5 Nb8 11. Nd2 Nd7 12. a4 Nf6 13. e3 c6 14. bxc6 bxc6 15. Ba3 Ne8 $5 ( 15... Be6 { continues the development. } ) 16. Rb3 ( 16. Ne2 { prevents the next advance. } ) 16... f4 17. Nde4 g5 18. Re1 Rf7 ( 18... g4 { goes on with the march. } ) 19. Bf3 Rf8 20. Bg2 Be6 21. Rb7 Bc8 22. Rb3 { This position occurs for the third time. Could Black have claimed a draw? } 22... Be6 23. Qe2 Kh8 24. Reb1 Nf5 25. Rb7 Bc8 26. R7b3 g4 $1 27. Qd2 fxg3 $6 ( 27... Rf7 { is a useful move. } ) 28. fxg3 h5 29. Nd1 Bh6 30. Qe1 Be6 31. Rb7 Neg7 $6 ( { Yudovich advices } 31... Bc8 ) 32. Nec3 Ne7 { Kholmov has underestimated the power of Rb7. } 33. d4 $1 exd4 34. exd4 Nef5 35. d5 $1 cxd5 $5 ( { Insufficient is } 35... Bc8 { due to } 36. dxc6 $1 Bxb7 37. cxb7 { (Yudovich). } ) 36. Nxd5 Bxd5 37. Bxd5 Nd4 38. Qe7 $1 Qa5 $2 ( 38... Qxe7 $1 39. Rxe7 Ngf5 40. Bxa8 Nxe7 41. Bxd6 Rxa8 42. Bxe7 Re8 43. Bf6+ Bg7 { Black has survival chances in the endgame. } ) 39. Bb4 Qxa4 40. Qxd6 Ndf5 41. Qg6 $1 Qe8 42. Qxe8 Rfxe8 43. Bc3 h4 $2 44. Rf7 $1 { Finally Boris is back on 50%. } 1-0
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "9"]
[White "Suetin, Alexei"]
[Black "Stein, Leonid"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "C96"]
[EventDate "1964.??.??"]
[PlyCount "118"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 d6 7. Re1 Be7 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Nd7 12. Nbd2 cxd4 13. cxd4 Nc6 14. Nb3 ( { The usual } 14. Nf1 { was played in Kholmov-Geller (round four). } ) 14... a5 15. Bd3 Rb8 16. Be3 a4 17. d5 $2 { Pawn d5 becomes weak. } ( { Correct is } 17. Nc1 { (Kursunsky-Zakharian, Riga 1975). } ) 17... Nb4 $1 18. Nc1 f5 $1 19. exf5 Nxd5 20. Ba7 Rb7 21. Be4 Rxa7 22. Bxd5+ Kh8 23. Nd3 Nf6 24. Nb4 Nxd5 25. Qxd5 Bb7 26. Qd3 ( 26. Qxb5 Bxf3 27. gxf3 Qc8 { brings a positional horror. } ) 26... a3 27. bxa3 Qa8 28. Re3 Bxf3 29. gxf3 Bg5 30. Re4 Rxa3 31. Qxd6 Rxf3 32. Rae1 R3xf5 33. R1e2 Qa7 $2 ( 33... Bf4 $1 { keeps the advantage. } ) 34. Nd3 Be7 35. Qd5 Bf6 36. Qxb5 Qf7 37. Qb4 Be7 38. Qb3 Rg5+ 39. Kh2 Qg6 40. f4 $1 { White has defended well in the last phase. } 40... exf4 41. Ne5 $2 ( { Yudovich gives the spectacular escape } 41. Rxe7 f3 42. Nf4 $1 Qd6 43. Qxf3 Rxf4 44. R7e6 ) 41... Rxe5 $1 42. Rxe5 Bd6 43. Qf3 Bxe5 44. Rxe5 h6 45. Re2 Qb1 46. Rf2 Rf6 47. Qa8+ Kh7 48. Qf3 Qf5 49. a4 Rf7 50. Rd2 Ra7 51. Qd1 Rc7 52. Qb3 Qe4 53. Rf2 Rc4 54. a5 Ra4 55. Qb6 $6 ( 55. Qc3 { is better. } ) 55... Ra1 $1 56. Rg2 Qe5 $1 57. Qg6+ Kh8 58. h4 f3+ 59. Rg3 f2 0-1
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "10"]
[White "Geller, Efim"]
[Black "Spassky, Boris"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "C72"]
[EventDate "1964.??.??"]
[PlyCount "60"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bg4 6. h3 Bh5 7. c3 Nf6 8. d4 b5 9. Bb3 Be7 10. Be3 O-O 11. Nbd2 d5 $5 { Boris plays his favourite move in the
Ruy Lopez. The opening of the centre sharpens the game. } 12. g4 Bg6 13. dxe5 ( { Bondarevsky prefers } 13. Nxe5 $1 Nxe5 14. dxe5 Nxe4 15. Nxe4 dxe4 16. Bd5 ) 13... Nxe4 14. Nb1 Qc8 $6 ( { Stronger is } 14... Qe8 $1 15. Bxd5 Rd8 16. Bxc6 Qxc6 17. Nd4 Qd7 ) 15. Nd4 $6 ( { Relatively best is } 15. Qxd5 Na5 16. Qd1 h5 17. Nh2 ) ( { No future has } 15. Bxd5 $2 Rd8 16. a4 Na5 $1 ) 15... Nxe5 16. f4 c5 17. fxe5 cxd4 18. cxd4 Qd7 19. Nd2 f6 20. Rc1 Kh8 21. Bf4 $2 ( { White has to try } 21. Nxe4 Bxe4 ) 21... fxe5 22. Bxe5 Bg5 $1 23. Rc7 { Spassky has prepared a wonderful surprise. } 23... Qxc7 $3 24. Bxc7 Be3+ 25. Kg2 Nxd2 26. Rxf8+ Rxf8 27. Bxd5 Rf2+ 28. Kg3 Nf1+ 29. Kh4 h6 30. Bd8 Rf8 0-1
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "10"]
[White "Kholmov, Ratmir"]
[Black "Bronstein, David"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "D32"]
[EventDate "1964.??.??"]
[PlyCount "83"]

1. c4 Nf6 2. Nc3 c5 3. Nf3 e6 4. e3 Nc6 5. d4 d5 6. cxd5 exd5 7. Be2 cxd4 8. Nxd4 { White will beleaguer the isolated pawn with little success. } 8... Bd6 9. O-O O-O 10. Nf3 Bg4 11. b3 Bxf3 12. Bxf3 Be5 13. Bb2 Qa5 14. a3 Rac8 15. b4 Qd8 16. Qb3 Qd6 17. h3 Qe6 18. Rfe1 Rfd8 19. Rad1 Ne7 20. Ne2 Bxb2 21. Qxb2 Ng6 22. Nd4 Qe5 23. Rc1 Ne7 24. Rxc8 Rxc8 25. Rc1 Rxc1+ 26. Qxc1 g6 27. Qc5 b6 28. Qc1 Kg7 29. Nb5 a6 30. Nd4 Ne4 31. Be2 a5 32. Bd3 axb4 33. axb4 Nf6 34. f4 Qd6 35. Qc3 h5 36. g4 hxg4 37. hxg4 Kg8 38. g5 Ne4 39. Bxe4 dxe4 40. Qc2 Qxb4 41. Qxe4 Qd6 42. Kf2 1/2-1/2
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "10"]
[White "Stein, Leonid"]
[Black "Korchnoi, Viktor"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "B84"]
[EventDate "1964.??.??"]
[PlyCount "93"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Be7 8. f4 Qc7 9. Qe1 O-O 10. Qg3 $5 Qb6 $5 { A furious fight for a place at the interzonal tournament has started. } 11. Be3 $1 Qxb2 12. Bf2 Qb4 13. e5 dxe5 14. fxe5 Ne8 ( { Bondarevsky mentions } 14... Nfd7 $2 15. Nd5 $1 exd5 16. Nf5 g6 17. a3 ) 15. Bd3 Qa5 16. Ne4 Nd7 17. Nf3 g6 $6 ( { Better is } 17... f5 18. exf6 Ndxf6 ) 18. Bd4 Ng7 19. Nf6+ Bxf6 20. exf6 Nh5 21. Qh4 Qd8 $2 ( 21... e5 { halts the attack. } ) 22. Rae1 Ndxf6 23. Ng5 e5 ( { No escape brings } 23... h6 24. Bxf6 hxg5 25. Qxg5 Nxf6 26. Rxf6 { (Bondarevsky). } ) 24. Bxe5 h6 25. Bxf6 hxg5 26. Qxg5 Nxf6 27. Rxf6 Qd4+ 28. Kh1 Qg4 29. Qh6 Bf5 30. h3 ( { A pawn wins } 30. Bxf5 gxf5 31. Rf1 { but Stein wants the king. } ) 30... Qd4 ( { Keene tries to save the day with } 30... Qb4 { but } 31. Re5 Bxd3 32. cxd3 Qb1+ 33. Kh2 Qxd3 34. Rg5 Rac8 35. Rgxg6+ $1 { wins. } ) 31. Rxf5 $1 { A sacrifice of the exchange opens the kingside. } 31... gxf5 32. Re3 Qg7 33. Qh4 Qa1+ 34. Kh2 Rfe8 35. Rg3+ Kf8 36. Qh6+ Ke7 { The king is hunted in the open field. } 37. Re3+ Kd7 38. Bxf5+ Kc7 39. Qf4+ Kc6 40. Qc4+ Kd6 41. Qb4+ Kd5 42. Rd3+ Ke5 43. Qd6+ $1 { The humiliation goes on. } 43... Kxf5 44. Rf3+ Kg5 45. Qf4+ Kh5 46. g4+ Kg6 47. Qxf7+ { Black will be mated quickly. } 1-0
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "11"]
[White "Bronstein, David"]
[Black "Geller, Efim"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "A33"]
[EventDate "1964.??.??"]
[PlyCount "135"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 Nc6 5. Nc3 e6 6. Ndb5 d5 7. cxd5 Nxd5 8. Nxd5 exd5 9. e3 Be6 10. Be2 Be7 11. Bd2 a6 12. Nd4 Nxd4 13. exd4 O-O 14. Qb3 Re8 15. O-O Bd6 { Geller has set a trap in an equal position. } 16. Bb4 ( { Bronstein avoids } 16. Qxb7 $2 Bxh2+ $1 17. Kxh2 Qd6+ 18. g3 $1 Reb8 19. Bf4 Qxf4 20. gxf4 Rxb7 ) 16... Bc7 17. Bf3 Qg5 18. Rad1 Rad8 19. Bd2 Qe7 20. Rfe1 Rd7 21. Rc1 Qf6 22. Qd3 Bd6 23. a3 h6 24. Bb4 Bf4 25. Bd2 Bb8 26. Bb4 h5 27. Bd2 g6 28. Qe3 Ba7 29. Bc3 Bb8 30. Bd2 Rdd8 31. Ba5 Rc8 32. Rxc8 Rxc8 33. Bc3 h4 34. h3 Bf4 35. Qe2 Bd6 36. Qe3 Bf4 37. Qe2 Qg5 38. Bg4 Bxg4 39. Qxg4 Qxg4 40. hxg4 Bd6 { Black has a plus in the endgame. } 41. Re3 Kg7 42. Kf1 b5 43. Ke2 a5 44. Kd3 b4 45. axb4 axb4 46. Bd2 Bf4 47. Re1 Bxd2 48. Kxd2 b3 49. Re5 $5 ( { More quickly draws } 49. Rc1 Re8 50. Re1 ) 49... Rc2+ 50. Ke3 Rxb2 51. Rxd5 Rc2 52. g5 b2 53. Rb5 Kf8 54. Rb7 Ke8 55. d5 Kd8 56. d6 Kc8 57. Rb5 Kd7 58. Rb6 Ke6 59. Kf3 Rd2 60. Ke3 Rc2 61. Kf3 Kd7 62. Ke3 Rc5 63. Rxb2 Rxg5 64. Rb7+ Ke6 65. Re7+ Kxd6 66. Rxf7 Rxg2 67. Rh7 g5 68. f4 1/2-1/2
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "11"]
[White "Korchnoi, Viktor"]
[Black "Suetin, Alexei"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "D32"]
[EventDate "1964.??.??"]
[PlyCount "128"]

1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. e3 e6 5. d4 d5 6. cxd5 exd5 7. Be2 Bd6 8. dxc5 Bxc5 9. O-O O-O 10. b3 Be6 11. Bb2 Qe7 12. a3 Rfd8 13. Na4 Bd6 14. b4 Ng4 $5 { The players fight for their last chance. } 15. Rc1 Nce5 16. Nxe5 Nxe5 17. Qd4 f6 18. Nc3 Nc6 19. Qh4 Be5 ( { The simplification } 19... d4 20. exd4 Nxd4 { is avoided. } ) 20. Bd3 f5 21. Qxe7 Nxe7 22. Na4 Bxb2 23. Nxb2 Rac8 24. Na4 Rxc1 25. Rxc1 d4 $2 ( { Correct is } 25... b6 26. Rc7 Rd7 ) 26. exd4 $2 { White misses a combination. } ( 26. Rc7 $1 dxe3 27. Nc5 $1 b6 28. Nxe6 Rxd3 29. fxe3 Kf7 30. Nxg7 Kxg7 31. Rxe7+ Kg8 32. Rxa7 Rxe3 { White has won a pawn. } ) 26... Rxd4 27. Bf1 Kf7 28. g3 f4 29. Nc5 Bd5 30. Nd3 g5 31. b5 Be4 32. Nb4 $6 { Hereafter White gets a passive position. } ( { Better is } 32. Nc5 ) 32... Ke6 33. gxf4 gxf4 34. Nc2 Rd8 35. Bh3+ Kf6 36. Ne1 Rd4 37. Bg2 Nf5 38. Bxe4 Rxe4 39. Nf3 Ra4 40. Rc7 Rxa3 41. Kg2 Ra2 42. Rxh7 $6 ( 42. Ne1 { is prudent. } ) 42... Ne3+ $1 43. Kh3 Rxf2 44. Nh4 b6 45. Rxa7 Rb2 46. Ra8 Nd5 47. Rf8+ Ke5 48. Ng6+ Ke4 49. Re8+ Kd4 50. Rd8 Kc5 51. Rf8 Rf2 52. Rf5 Kd4 53. Rf8 Rf1 54. Nh4 Kc4 55. Kg4 Rg1+ $6 ( 55... Kxb5 56. Nf3 Kb4 57. h4 b5 58. h5 Rh1 { continues the battle. } ) 56. Kf5 Kxb5 57. Nf3 Rd1 58. h4 Rh1 59. Ke4 Nc3+ 60. Kxf4 Kc4 61. Kg5 Ne4+ 62. Kg6 b5 63. h5 b4 64. Rc8+ Kd3 1/2-1/2
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "11"]
[White "Spassky, Boris"]
[Black "Stein, Leonid"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "D87"]
[EventDate "1964.??.??"]
[PlyCount "60"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 Nc6 9. O-O b6 10. Be3 Na5 11. Bd3 c5 12. Rc1 Nc6 13. Bb5 Bb7 14. Bxc6 ( { White has to play } 14. dxc5 { if he wants to win. } ) 14... Bxc6 15. d5 Bb7 16. c4 e6 17. Re1 Re8 18. Qd2 exd5 19. exd5 Qd7 20. Nc3 Re7 21. Bg5 Rxe1+ 22. Rxe1 Re8 23. Ne4 Ba6 24. Nf6+ Bxf6 25. Bxf6 Rxe1+ 26. Qxe1 Bxc4 27. Qe5 Bb5 28. Qb8+ Qe8 29. Be5 Qxb8 30. Bxb8 Bc4 { A draw is useful for both players. } 1/2-1/2
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "12"]
[White "Geller, Efim"]
[Black "Kholmov, Ratmir"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "A25"]
[EventDate "1964.??.??"]
[PlyCount "66"]

1. c4 e5 2. Nc3 d6 3. g3 Nc6 4. Bg2 g6 5. e3 Bg7 6. Nge2 h5 7. d4 exd4 8. Nxd4 Nge7 9. h3 Nxd4 10. exd4 Nf5 11. Ne4 $1 { Geller charges. } 11... O-O $1 { Black reacts quietly. } ( 11... Nxd4 $2 12. Bg5 Qd7 13. Bf6 $18 ) ( 11... Bxd4 $6 12. g4 hxg4 13. hxg4 Nh4 14. Rxh4 $1 $16 ) 12. O-O Nxd4 13. Bg5 f6 14. Qxd4 fxg5 15. Qd5+ Kh8 16. Nxg5 Qf6 17. h4 c6 18. Qd2 Bf5 ( { Some problems gives } 18... Qxb2 19. Qxd6 ) 19. b3 Rad8 20. Rad1 Qc3 21. Be4 Qxd2 22. Rxd2 Bc3 23. Rd3 Bb4 24. f3 Rde8 25. Rfd1 Bxe4 26. Nxe4 d5 27. cxd5 cxd5 28. Rxd5 Rxf3 29. R1d4 a5 30. Rd8 Rxd8 31. Rxd8+ Kg7 32. Kg2 Rf7 33. Ng5 Re7 1/2-1/2
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "12"]
[White "Stein, Leonid"]
[Black "Bronstein, David"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "C16"]
[EventDate "1964.??.??"]
[PlyCount "87"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. Bd3 c5 6. dxc5 Qc7 7. Nf3 Nd7 8. O-O { Bronstein has been lured into a sharp opening. } 8... Bxc3 9. bxc3 Nxc5 10. Ba3 $5 Bd7 11. Rb1 $5 b6 12. Re1 Rc8 $1 13. Bf1 $5 Na4 $5 ( { Polugaevsky mentions } 13... O-O $1 14. c4 Rfd8 ) 14. Qc1 Qxc3 $2 ( { Correct is } 14... Nxc3 $1 15. Bxe7 Kxe7 16. Rb3 ) 15. Ba6 $1 Rc5 $5 ( 15... Qxc2 16. Bxc8 Qxc8 17. Qg5 { is horrible for Black. } ) 16. Bd3 $1 { This subtlety has great strength. } ( 16. Bxc5 Nxc5 ) 16... Nc6 17. Rb3 Qa5 18. Qg5 { Black has been outplayed all over the board. } 18... Kf8 $1 ( 18... O-O 19. Bxh7+ Kxh7 20. Bb4 $1 Nxb4 21. Qh5+ Kg8 22. Ng5 { ends fatally for Black, because ..Qxe1# has been prevented (Polugaevsky). } ) 19. c3 ( 19. Bb5 $1 { wins quickly. } ) 19... h6 20. Qd2 d4 21. cxd4 $6 ( 21. Nxd4 $1 Nxd4 22. Bb4 Nxb3 23. axb3 { gains a queen. } ) 21... Qxd2 22. Nxd2 Nxd4 23. Rb4 Nf5 24. Ne4 $6 ( 24. Bc2 $1 Rxc2 25. Rc4+ $18 ) 24... Rd5 $1 25. Bc2 ( 25. Rxb6+ $1 Kg8 26. Rb8+ Kh7 27. Rb3 Rd8 28. g4 { is better. } ) 25... Kg8 $1 26. Rc4 Bb5 $2 ( { A disaster avoids } 26... b5 27. Rc7 Nb6 28. Bb3 ) 27. Rc7 $2 ( { The game finishes } 27. Rc8+ $1 Kh7 28. Rc7 Rd7 $2 29. Rxd7 Bxd7 30. g4 Nd4 31. Nf6# ) 27... Rd7 $1 28. Rxd7 Bxd7 29. Rd1 Bc6 30. Nd6 g6 31. Nxf5 gxf5 32. Rd6 Bb5 33. g4 $6 fxg4 34. Rd4 Nc5 35. Rxg4+ Kf8 36. Bc1 Ke7 $2 37. h4 Bd3 38. Bxd3 Nxd3 39. Ba3+ Ke8 40. Rc4 Rg8+ 41. Kf1 Nc5 $5 { Bronstein takes the draw happily. } 42. Bxc5 bxc5 43. Rxc5 Rg4 44. Ra5 1/2-1/2
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "12"]
[White "Suetin, Alexei"]
[Black "Spassky, Boris"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "C95"]
[EventDate "1964.??.??"]
[PlyCount "177"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8 11. Nbd2 Bf8 12. a3 Bb7 13. Bc2 Nb8 14. b4 Nbd7 15. Bb2 Nb6 16. Re3 $5 a5 17. Qe2 Na4 $5 18. Qxb5 ( { Polugaevsky prefers } 18. Bxa4 $1 bxa4 19. b5 ) 18... Nxb2 19. bxa5 ( 19. Qxb7 Qd7 20. b5 Rab8 21. Qa6 Qxb5 { brings equality. } ) 19... Rb8 20. Qxb2 Bxe4 21. Qc1 Bxf3 22. Rxf3 e4 23. Rxf6 $5 { Suetin has great ambitions. } 23... Qxf6 24. Bxe4 d5 $1 { Spassky gives a pawns temporarily for defensive reasons. } 25. Bxd5 Rb5 26. Bf3 Rxa5 27. a4 Qa6 28. Qc2 c5 29. dxc5 Bxc5 30. Qb3 Qa7 31. Ne4 Bf8 32. Qc4 Kh8 33. Bd1 Rae5 34. Bc2 Qb7 35. Ng3 Qb2 36. Ra2 Qc1+ 37. Kh2 Re1 38. Qd3 g6 39. Bb3 Bg7 40. Re2 $2 ( { Correct is } 40. Rc2 ) 40... R8xe2 41. Nxe2 { All black pieces should attack the king. } 41... Rh1+ $2 ( 41... Be5+ 42. g3 Rh1+ 43. Kg2 Qf1+ 44. Kf3 Rh2 { (Polugaevsky). } ) 42. Kg3 Qg5+ 43. Kf3 Qh5+ 44. g4 $6 Qxh3+ 45. Ng3 Rh2 ( 45... Rc1 $1 46. Bc2 Qh4 { offers better chances. } ) 46. Qe3 Qg2+ 47. Ke2 Qa8 48. Bxf7 Qxa4 49. Qe8+ Qxe8+ 50. Bxe8 Be5 51. Kf3 Kg7 52. c4 Bd4 53. Ne4 Rh1 54. c5 Re1 55. c6 Be5 56. Nc5 Bd6 57. Bd7 Kf7 58. Nd3 Ra1 59. Nc5 Ke7 60. Ne4 Ra3+ 61. Kg2 Bc7 62. Bc8 Ra8 63. Bd7 Rf8 64. Kf1 Bb6 65. Kg2 Rf4 66. f3 Rf8 67. g5 hxg5 68. Nxg5 Be3 69. Bg4 Bb6 70. Ne4 Ra8 71. Bd7 Bc7 72. Nc3 Ra5 73. Ne4 Ra2+ 74. Kf1 Bf4 75. Ke1 Ra5 76. Kd1 Kd8 77. Ke2 Kc7 78. Nc3 Be5 79. Ne4 Ra2+ 80. Kd3 Ra3+ 81. Kc4 Bf4 $6 ( 81... Rxf3 $1 82. Be8 Rf8 83. Bxg6 Kxc6 { wins theoretically, if the fifty moves rule is not applied. } ) 82. Nc3 Kd8 83. Bg4 g5 84. Nd5 Bd6 85. Kd4 Ra4+ 86. Kd3 Ra1 87. Ke4 Re1+ 88. Kd4 Be5+ 89. Kd3 1/2-1/2
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "13"]
[White "Bronstein, David"]
[Black "Suetin, Alexei"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "A48"]
[EventDate "1964.??.??"]
[PlyCount "75"]

1. d4 Nf6 2. Nf3 g6 3. c3 b6 4. Bg5 Bg7 5. Nbd2 Bb7 6. Bxf6 Bxf6 7. e3 c5 8. Bd3 Bg7 9. O-O O-O 10. b4 cxd4 11. cxd4 Nc6 12. a3 f5 13. Qb3+ e6 14. Rac1 Kh8 15. Nc4 d6 16. b5 Ne7 17. Ng5 Bd5 18. f4 Qd7 19. Qb4 Rad8 20. Be2 Bf6 21. Nf3 h6 22. a4 g5 $1 23. Qd2 Rg8 24. Nb2 Rg6 25. Nd3 Rdg8 26. Nfe1 Be4 27. Nf2 Ba8 28. Nfd3 Nd5 29. Bh5 $5 { The confrontation has started at last. } 29... R6g7 ( { Black can play for a win with } 29... gxf4 $1 30. Nxf4 $1 ( 30. Bxg6 $2 fxe3 31. Qe2 Rxg6 ) 30... Nxf4 31. Rxf4 Rxg2+ $1 32. Nxg2 Rxg2+ 33. Qxg2 Bxg2 34. Kxg2 e5 ) 30. Bf3 Qe8 31. Nb4 Nxb4 32. Qxb4 gxf4 33. exf4 Bh4 34. Rc2 Bxe1 35. Qxe1 Bxf3 36. Rxf3 Qa8 37. Qxe6 Qxf3 38. Qxh6+ 1/2-1/2
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "13"]
[White "Kholmov, Ratmir"]
[Black "Stein, Leonid"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "E75"]
[EventDate "1964.??.??"]
[PlyCount "92"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. d5 e6 8. Nf3 h6 9. Be3 exd5 10. exd5 Bf5 11. O-O Ne4 12. Nxe4 Bxe4 13. Bd3 Bxf3 14. Qxf3 Nd7 15. Qh3 Ne5 16. Rad1 ( { Play continues with } 16. Be2 $1 Qd7 17. Qh4 { because the black queen cannot go to g4. } ) 16... Qd7 { Draw is a useful result
for Stein. Exchange of the queens brings him toward his goal. } 17. Qxd7 Nxd7 18. Rfe1 Rfe8 19. Bc1 Kf8 20. h3 h5 21. Kf1 Bd4 22. g3 Ne5 23. Be2 Nd7 24. Kg2 Re7 25. Bf1 Rae8 26. Bh6+ Bg7 27. Rxe7 Rxe7 28. Bf4 Be5 29. Be3 Bf6 30. b3 b6 31. Re1 Kg7 32. Bd2 Rxe1 33. Bxe1 Bd4 34. Bd3 Ne5 35. Be2 Nd7 36. Bd2 Bb2 37. Bg5 Bf6 38. Bc1 Bd4 39. Bf4 Be5 40. Be3 Bc3 41. Bf4 Be5 42. Bd2 Bd4 43. g4 hxg4 44. hxg4 f5 45. g5 Kf7 46. Kf1 a5 1/2-1/2
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "13"]
[White "Spassky, Boris"]
[Black "Korchnoi, Viktor"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "E18"]
[EventDate "1964.??.??"]
[PlyCount "47"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 8. cxd5 exd5 9. Ne5 $5 Qc8 10. Bg5 Qe6 { This position stems from Eliskases-Najdorf, Buenos Aires 1947. } 11. Rc1 c5 $2 ( { The prudent answer } 11... c6 { was played in Van Scheltinga-Donner, Beverwijk 1964. } ) 12. Nd3 $1 cxd4 ( { A centre pawn costs } 12... Nbd7 13. Nf4 Qf5 14. Bxf6 Nxf6 15. dxc5 Bxc5 16. Ncxd5 ) 13. Bxf6 { Korchnoi collapses completely. } 13... Bxf6 $2 ( { Black can fight after } 13... dxc3 $1 14. Bxc3 $1 Rd8 { (Moiseev). } ) 14. Nxd5 Bxd5 15. Nf4 Qd6 16. Nxd5 Bg5 17. f4 Bd8 18. Nc3 Na6 19. Bxa8 Qb8 20. Nd5 Qxa8 21. Qxd4 Nc5 22. b4 Ne6 23. Qd3 Re8 24. e4 { Spassky has qualified for the interzonal tournament. } 1-0
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "14"]
[White "Korchnoi, Viktor"]
[Black "Bronstein, David"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "E06"]
[EventDate "1964.??.??"]
[PlyCount "97"]

1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. O-O O-O 6. d4 c6 7. Qc2 b6 8. b3 Bb7 9. Bb2 Na6 $5 10. Rd1 Qc8 $5 11. e3 c5 12. Qe2 dxc4 $5 { Black brings life to a dull game. } 13. bxc4 Rd8 14. Nc3 Ne4 15. Nxe4 Bxe4 16. Ne5 Bxg2 17. Kxg2 f6 18. Nf3 Nc7 19. a4 Bf8 20. h4 Qb7 21. Kg1 Qe4 22. Nd2 Qc2 23. Ra2 cxd4 24. Rc1 ( { The instant } 24. exd4 $2 { is punished by } 24... Rxd4 $1 ) 24... Qf5 25. exd4 Bb4 26. Nf3 Rac8 27. Kg2 h5 $6 { An unnecessary weakening. } 28. Bc3 Bf8 29. Rd2 Qg4 30. Rd3 Rd7 31. Re3 Qf5 32. Re4 Rd6 33. Rd1 Rc6 34. Rf4 $5 { White wants to charge. } 34... Qg6 35. Nd2 Qc2 $5 { Black counterattacks. } 36. Qxh5 $5 Qxc3 37. Ne4 Qc2 ( 37... Qxc4 $1 38. Ng5 $1 Qd5+ $1 39. Kh2 fxg5 40. Qf7+ Kh8 41. Qh5+ { results in perpetual check. } ) 38. d5 $1 ( { White avoids the repetition. } 38. Qg6 Kh8 39. Qh5+ ) 38... exd5 39. cxd5 Rd6 $1 { White has a strong attack for a piece. } 40. Rd2 Qc1 $1 ( { The blunder } 40... Qb1 $2 { makes } 41. Qf5 $1 { decisive. } ) 41. Qg6 $1 Re8 $5 ( { F6 and g7 are protected by } 41... Ne8 $2 { but } 42. Ng5 fxg5 43. Qf7+ Kh7 44. hxg5 Rc4 45. Rd3 $3 Qc2 46. Rdd4 { wins. } ) 42. Nxd6 Bxd6 43. Rc2 $1 Qb1 $2 ( 43... Qxc2 $1 44. Qxc2 Bxf4 45. gxf4 Nxd5 { leads to a defendable endgame (Baranov). } ) 44. Rxf6 Be5 45. d6 Bxf6 46. dxc7 Rc8 47. Qf5 Rxc7 48. Qd5+ Rf7 49. Rc8+ { The players made an exhibition of the last game. } 1-0
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "14"]
[White "Stein, Leonid"]
[Black "Geller, Efim"]
[Result "1/2-1/2"]
[ECO "C48"]
[EventDate "1964.??.??"]
[PlyCount "60"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Nxd4 exd4 6. e5 dxc3 7. exf6 Qxf6 8. dxc3 Qe5+ 9. Qe2 { Stein needs a draw. } 9... Qxe2+ 10. Bxe2 d5 11. Be3 Bd6 12. O-O O-O 13. Rfe1 Bf5 14. Bd3 Bxd3 15. cxd3 Rfe8 16. Bd2 f6 17. Kf1 Kf7 18. h3 h5 19. Rxe8 Rxe8 20. Re1 Rxe1+ 21. Kxe1 Ke6 22. Ke2 b5 23. b3 a6 24. Kf3 c6 25. g4 hxg4+ 26. hxg4 Be5 27. Ke3 f5 28. f3 Bf6 29. Be1 Ke5 30. Bg3+ Ke6 1/2-1/2
[Event "Moscow zt"]
[Site "?"]
[Date "1964.??.??"]
[Round "14"]
[White "Suetin, Alexei"]
[Black "Kholmov, Ratmir"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "C43"]
[EventDate "1964.??.??"]
[PlyCount "49"]

1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Qxd4 d5 6. exd6 Nxd6 7. Nc3 Nc6 8. Qf4 Bf5 9. Bb5 Qe7+ 10. Kf1 $5 Be4 11. Bxc6+ ( { The alternative } 11. Ba4 O-O-O 12. Nxe4 Nxe4 { was played in Zakharov-Krutikhin, Novosibirsk 1962. } ) 11... Bxc6 12. Ne5 $1 O-O-O $5 ( 12... Qe6 13. Nxc6 bxc6 14. Qf3 { is mentioned by Karpov. Black may continue with the risky } 14... Nc4 15. Bf4 O-O-O ) 13. Nxc6 bxc6 14. Qa4 $1 Nb5 15. Be3 Qb4 { Poor Kholmov has to win but suffers in a dangerous position. } 16. Qa6+ $1 ( 16. Qxb4 Bxb4 17. Nxb5 cxb5 18. c3 { draws easily. } ) 16... Kb8 17. Qxc6 { Suetin wants to win. } ( { The exchanges } 17. Nxb5 Qxb5+ 18. Qxb5+ cxb5 { lead to an equal endgame (Baranov). } ) 17... Nd4 18. Bxd4 ( { A favourable endgame brings } 18. Qa6 $1 Bc5 19. a3 Qb7 20. Qxb7+ Kxb7 21. Rc1 Bb6 22. g3 { (Klovans-Harman, corr. USSR 1985). } ) 18... Qxd4 { Suetin finishes the game with perpetual check. } 19. Rd1 $5 ( 19. Qb5+ Qb6 { brings little advantage. } ) 19... Qxd1+ 20. Nxd1 Rxd1+ 21. Ke2 Rxh1 22. g4 Rxh2 23. Qe8+ Kb7 24. Qb5+ Kc8 25. Qe8+ { Final standings: Spassky 7, Bronstein and
Stein 6 1/2, Kholmov 6, Suetin and Korchnoi 5 1/2, Geller 5. Spassky,
Bronstein and Stein have qualified for the interzonal tournament. Seven of the
twelve best players of the world played in a zonal tournament. It showed Boris
as a comeback kid.  Jan van Reek } 1/2-1/2
[Event "Olympic games"]
[Site "Munchen"]
[Date "1958"]
[Round "?"]
[White "Walther"]
[Black "Tal,M"]
[Result "0-1"]
[Annotator "DrDave"]
[Source "Exeter Chess Club"]

{ Natural moves in the opening } 1. e4 c5 2. Ne2 Nf6 3. d3 Nc6 4. Nd2 { So many words have been written about Tal that my own observations are perhaps rather superfluous. The brilliance of his play and the dramatic way his wins are often achieved are apparent to all.
For tonight's session, and with their instructional content in mind, I would just like to add that it was interesting to me how some of his most striking wins are introduced by apprently simple means - not striving for complications but building up with classically good moves. This may be partly a reflection of how familiar the GM play of the 1950s is to a club player of the 1990s - the Modern Benoni was by no means a staple when Tal played it - but nonetheless you feel that Capablanca would have chosen many of Tal's moves, even if he would have tried to reach a decision by different means.
Most curious. It is not unusual to develop one or other Knight to the second rank, but both at once, and before developing either Bishop, is very odd. Any advantage Walther saw in getting Tal out of the books is outweighed by the unnatural formation and the need to get his pieces untangled. Tal does not strike immediately, but develops quietly, waiting for a suitable moment to arise. } 4... d5 5. c3 dxe4 6. dxe4 g6 7. Qc2 Bg7 8. a4 $2 O-O 9. Nc4 $2 Na5 10. Nf4 { White is trying to get sorted but is a long way from castling. Tal gives White's formation a sharp push, and after some wobbling, it collapses. } 10... e5 $1 11. Nd5 Nxe4 12. Qxe4 Nb3 13. Ra3 Bf5 14. Qe3 Nxc1 15. Qxc5 Re8 16. Qe3 { On "body count" Black is a bare Pawn up, but as Bill Hartston says, its the pieces on the board that count, and White's are horribly uncoordinated. } 16... Bf8 17. Nb4 a5 18. Nxa5 Qxa5 19. Qxc1 Bxb4 20. cxb4 Qxb4+ 21. Rc3 Qe4+ 22. Be2 Rxa4 23. f3 Qb4 24. g4 e4 $1 { Properly opening up lines against White's uncastled King. } 25. f4 Ra2 $1 26. gxf5 Rxb2 27. O-O $1 { At last! But Black's nicely centralised and active forces are still in control. } 27... Rxe2 28. Rc8 Qb6+ 29. Kh1 Rxc8 30. Qxc8+ Kg7 31. fxg6 hxg6 32. f5 Qf6 33. Qxb7 Qe5 0-1
[Event "ch-SU"]
[Site "Riga"]
[Date "1958"]
[Round "?"]
[White "Averbakh"]
[Black "Tal,M"]
[Result "0-1"]
[Annotator "DrDave"]
[Source "Exeter Chess Club"]

{ Trying to refute an opponent's opening } 1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 g6 7. Be2 Bg7 8. Nf3 O-O 9. O-O Re8 { So far, so typical of the Modern Benoni. At the time this formation was still considered rather suspect (and maybe it still is in some circles), so Averbakh adopts a very active plan to 'punish' this cheeky opening, targeting d6. } 10. Qc2 Na6 11. Bf4 Nb4 12. Qb1 { White's formation is just for the moment in need of a few moves for perfect comfort. Tal decides the time to strike is now! } 12... Nxe4 13. Nxe4 Bf5 14. Nfd2 Nxd5 { This sacrifice of a Knight for central Pawns is seen repeatedly in Tal's play, and his practical results have been excellent. } 15. Bxd6 $6 ( 15. Bg3 { e.g. } 15... Qe7 16. Bf3 Rad8 ) 15... Nf6 16. Bf3 Nxe4 17. Nxe4 Bxe4 18. Bxe4 Qxd6 { The scrapping has led to a winning position for Black. Opposite coloured Bishops only draw if they are the only things on the board! } 19. Qc2 Re7 20. Bf3 Rae8 21. Rad1 Bd4 22. a4 b6 23. b3 Re5 24. Rd2 h5 25. Re2 Rxe2 26. Bxe2 h4 27. Kh1 Qf4 28. g3 Qf6 29. Qd1 Rd8 30. Bg4 Bxf2 31. Qe2 Rd2 32. Qe8+ Kh7 33. gxh4 Qd4 34. Bh3 Qd3 35. Bg2 Rd1 0-1
[Event ""]
[Site "Riga"]
[Date "1954"]
[Round "?"]
[White "Saigin"]
[Black "Tal,M"]
[Result "0-1"]
[Annotator "DrDave"]
[Source "Exeter Chess Club"]

{ Natural moves in the middlegame } 1. d4 Nf6 2. c4 c5 3. Nf3 e6 4. g3 cxd4 5. Nxd4 d5 6. Bg2 e5 7. Nf3 d4 8. O-O Nc6 9. e3 $5 Be7 10. exd4 exd4 11. Nbd2 Be6 { White has allowed Black a passed Pawn, hoping that it will become weak. } 12. Re1 O-O 13. b3 Qd7 14. Bb2 Rad8 15. a3 a5 16. Ne5 Nxe5 17. Rxe5 b6 18. Nf3 Bc5 19. Qd2 Ng4 20. Ree1 d3 21. Rf1 { Black has a nice position, but what to do next? } 21... Qd6 { "Such quiet and apparently non-constructive moves are among the finest and most difficult to find in a game of chess." - Clarke. } 22. Qc3 ( 22. b4 axb4 23. axb4 Bxb4 ) ( 22. h3 Nxf2 23. Rxf2 Qxg3 ) 22... f6 23. Rad1 Rfe8 24. Rd2 Bf5 25. Ng5 { Surely Black's position has reached its peak of potential. All we need now is a way of translating the good position into a decisive tactical blow - and of that art Tal has always been a master. } 25... Ne3 $3 26. fxe3 ( 26. Re1 Nxg2 27. Rxe8+ Rxe8 28. Kxg2 Qc6+ 29. f3 ( 29. Nf3 Be4 ) 29... Re1 ) 26... Bxe3+ 27. Kh1 ( 27. Rff2 Bxf2+ 28. Kxf2 Qc5+ 29. Kf1 Re1+ 30. Kxe1 Qg1+ 31. Bf1 Re8+ ) ( 27. Rdf2 Bxf2+ 28. Rxf2 ( 28. Kxf2 Qc5+ ) 28... d2 29. Bd5+ Qxd5 30. cxd5 d1=Q+ ) 27... Bxd2 28. Qxd2 Re2 29. Qc3 Rxg2 ( 29... Rxg2 30. Kxg2 d2 31. Rd1 Bg4 32. Nf3 Qd3 ) 0-1
[Event "23rd USSR ch"]
[Site ""]
[Date "1956"]
[Round "?"]
[White "Tal,M"]
[Black "Simagin"]
[Result "1-0"]
[Annotator "DrDave"]
[Source "Exeter Chess Club"]

{ A real sacrifice } 1. e4 c6 2. d4 d6 3. Nc3 Nf6 4. f4 Qb6 5. Nf3 Bg4 6. Be2 Nbd7 7. e5 Nd5 8. O-O Nxc3 9. bxc3 e6 ( 9... Bxf3 10. Bxf3 dxe5 11. fxe5 Nxe5 12. Ba3 ) 10. Ng5 Bxe2 11. Qxe2 h6 12. Nxf7 { Easy to see, hard to play! Simagin undoubtedly expected this move and was deliberately inviting it, judging that Tal was bluffing. Bravery from both players, then!
Spielmann calls this type of move a 'real' sacrifice as opposed to those sacrificial combinations where the hoped-for gain is clear and short- term. We have seen already a Tal sacrifice in the game against Averbakh where the omens may have been good but the precise justification was not obvious. } 12... Kxf7 13. f5 dxe5 14. fxe6+ Kxe6 15. Rb1 Qxb1 16. Qc4+ Kd6 17. Ba3+ Kc7 18. Rxb1 Bxa3 19. Qb3 Be7 20. Qxb7+ Kd6 21. dxe5+ ( 21. Rd1 $1 $18 ) 21... Nxe5 22. Rd1+ Ke6 23. Qb3+ Kf5 24. Rf1+ Ke4 ( 24... Kg6 25. Qe6+ Bf6 26. Qf5+ Kf7 27. Qxe5 ) 25. Re1+ Kf5 26. g4+ Kf6 27. Rf1+ Kg6 28. Qe6+ Kh7 29. Qxe5 Rhe8 30. Rf7 Bf8 31. Qf5+ Kg8 32. Kf2 Bc5+ 33. Kg3 Re3+ 34. Kh4 Rae8 35. Rxg7+ Kxg7 36. Qxc5 R8e6 37. Qxa7+ Kg6 38. Qa8 Kf6 39. a4 Ke5 40. a5 Kd5 41. Qd8+ Ke4 42. a6 Kf3 43. a7 Re2 44. Qd3+ R6e3 45. Qxe3+ 1-0
[Event "ch-SU"]
[Site "Moskva"]
[Date "1957"]
[Round "?"]
[White "Aronson"]
[Black "Tal,M"]
[Result "0-1"]
[Annotator "DrDave"]
[Source "Exeter Chess Club"]

{ Mixing it } 1. d4 e6 2. c4 f5 3. Nf3 Nf6 4. Nc3 Be7 5. g3 O-O 6. Bg2 d6 7. O-O Qe8 8. Re1 Qg6 9. e4 fxe4 10. Nxe4 Nxe4 11. Rxe4 Nc6 12. Qe2 Bf6 13. Bd2 e5 14. dxe5 dxe5 15. Bc3 Bf5 16. Nh4 Bxh4 17. Rxh4 Rae8 { Tal's position looks OK but White's position also has virtues. The game now enters a scrappy phase where Tal's formidable powers of imagination and calculation shine. } 18. Qe3 h6 19. b4 $1 Qf6 20. b5 Nd8 21. Bd5+ Kh8 22. f4 $2 exf4 $1 23. Qd2 { Just when White might have thought he was getting somewhere... } 23... Qb6+ $1 24. Bd4 Qg6 25. Qxf4 ( 25. Rxf4 Ne6 26. Bxe6 Bxe6 ) 25... Kh7 $1 26. Qxc7 ( 26. Qd2 ) 26... Bb1 27. Be5 Ne6 28. Qd6 Qf5 29. Bf4 Ng5 30. Qb4 Be4 31. Bxe4 Rxe4 32. Rf1 Re2 33. Qd6 Rxa2 34. Qd5 Qc2 35. c5 Rd8 $1 36. Bd6 Re8 $1 { time } ( 36... Re8 37. Qf5+ Qxf5 38. Rxf5 Re1+ 39. Rf1 Nf3+ ) 0-1
[Event "sf-ch-SU"]
[Site "Tbilisi"]
[Date "1956"]
[Round "?"]
[White "Tal,M"]
[Black "Yukhtman"]
[Result "1-0"]
[Annotator "DrDave"]
[Source "Exeter Chess Club"]

{ Outside passed Pawn } 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 h6 8. Bxf6 Nxf6 9. Qe2 e6 10. a3 Be7 11. Bb3 Bd7 12. O-O Qa5 13. Rad1 Qh5 14. Qe1 g5 $2 15. e5 $1 Ng4 16. Nf3 Bc6 17. Bd5 $1 Nxe5 18. Nxe5 exd5 19. Nxd5 $1 Bxd5 20. Rxd5 dxe5 21. Rxe5 O-O 22. Rxe7 { Peter Clarke remarks that drawing chances in major piece endings depend on (1) exposed opponent's King, (2) possession of an advanced or passed Pawn, and (3) weak enemy Pawns. Black has none of these! } 22... Rac8 23. Qe4 b5 24. Re1 Rcd8 25. c4 $1 bxc4 26. Qxc4 Qg6 27. Ra7 Rfe8 28. Rxe8+ Rxe8 29. g3 Re6 30. Kg2 Rf6 31. Ra8+ Kh7 32. Rd8 $1 { Deliberately inviting... } 32... Rxf2+ 33. Kxf2 Qf6+ 34. Ke3 Qxd8 35. Qd3+ Qxd3+ 36. Kxd3 { Tal had of course had foreseen this simple win: the outside passed Pawn wins. } 36... Kg6 37. Ke4 Kf6 38. g4 $1 Ke6 39. b4 h5 40. gxh5 f5+ 41. Kd4 Kf6 42. a4 g4 43. b5 1-0
[Event ""]
[Site ""]
[Date "1956"]
[Round "?"]
[White "Tal,M"]
[Black "Lisitsin"]
[Result "1-0"]
[Annotator "DrDave"]
[Source "Exeter Chess Club"]

{ Active King in the Ending } 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Nc6 7. Nxc6 bxc6 8. e5 Nd7 9. exd6 exd6 10. Be3 Be7 11. Qf3 d5 12. O-O-O Bf6 13. Bd4 O-O 14. h4 Rb8 15. Qf2 Rb4 16. Bxf6 Nxf6 17. a3 Qb6 18. Qxb6 Rxb6 19. Na4 Rb7 20. Bd3 Nh5 21. Rhf1 Re7 { How to save the f-pawn? } 22. f5 $1 { Can't be done, but Tal gives it up for a high price - scrambled pawns. } 22... gxf5 23. Rfe1 Rfe8 24. Rxe7 Rxe7 25. Kd2 { In Exeter we say "KUFTE!" (King Up For The Endgame!) } 25... Ng3 26. Kc3 f4 27. Kd4 Bf5 { And there it is, nicely posted in the middle of a lot of weak Black pawns. } 28. Rd2 Re6 29. Nc5 Rh6 30. Ke5 $1 Bxd3 31. cxd3 Rxh4 32. Kd6 Rh6+ 33. Kc7 Nf5 34. Kb7 Nd4 35. Rf2 a5 36. Rxf4 Ne6 37. Rg4+ Kf8 { The game is decided all in the position of the two Kings. } 38. Kxc6 $1 Nxc5+ 39. Kxc5 Re6 40. Kxd5 Rb6 41. b4 axb4 42. axb4 Ke7 { Too late } 43. Kc5 Rf6 44. Rd4 Rf5+ 45. Kb6 Rf6+ 46. Kc7 Rf5 47. Re4+ Kf6 48. Kc6 Rf2 49. g4 h5 50. gxh5 Kg5 51. b5 f5 52. Rb4 f4 53. b6 f3 54. b7 ( 54. b7 Rc2+ 55. Kd5 f2 56. b8=Q f1=Q 57. Qg3+ Kf6 58. Qe5+ Kf7 59. Rb7+ Rc7 60. Rxc7+ Kf8 61. Qh8# ) 1-0
[Event "WM"]
[Site "Varna tt stud"]
[Date "1958"]
[Round "?"]
[White "Tal,M"]
[Black "Djurasevic"]
[Result "1-0"]
[Annotator "DrDave"]
[Source "Exeter Chess Club"]

{ Activity of the pieces } 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O h6 9. Bf4 Bd7 10. Nxc6 Bxc6 11. f3 Qb6 12. Bc4 O-O-O 13. Be3 Qc7 14. Qf2 Nd7 15. f4 b5 16. Be2 Qb7 17. a3 $1 Be7 $2 { This apparently safe developing move is not to the point. } ( 17... Nf6 ) 18. Bf3 Nf6 19. e5 Ne4 20. Nxe4 Bxe4 21. Bxe4 Qxe4 22. Bb6 $1 Rd7 23. Rhe1 Qb7 24. exd6 Rxd6 25. Rxd6 Bxd6 26. Qd4 Bc7 { White can grab the pawn on g7, but... Purdy talks about 'contempt for Pawns' - what is more important is to keep active. } 27. Bxc7 $1 { "The most important feature of each phase of the game is the activity of the pieces." - Stean. } ( 27. Qxg7 Bxf4+ 28. Kb1 Re8 29. g3 { when Black's active pieces have counterplay. } ) 27... Qxc7 28. Rd1 Rd8 { Biting the bullet! } ( 28... Qc4 29. Qxc4+ bxc4 30. Rd4 ) ( 28... f6 29. Qd6 ) ( 28... Rg8 29. Rd3 Kb8 30. Rc3 Qd8 31. Qc5 Qd7 32. Qb6+ Qb7 33. Qd6+ Ka8 34. Rc6 ) ( 28... Kb8 29. Rd3 Rc8 30. Rc3 Qb7 31. Rxc8+ Qxc8 32. Qxg7 ) 29. Qxd8+ Qxd8 30. Rxd8+ Kxd8 31. Kd2 Kd7 32. Kd3 Kd6 { The exchanges have led to a position in which Tal again has a Queen's-side majority, but this is by no means a simple win because of the "outside" candidate. The reason this position is won is because the White Queen's-side majority is 3:2 as opposed to 4:3. This simpler formation can yield a passed Pawn more quickly. } 33. c4 bxc4+ ( 33... Kc6 { passive defence } 34. Kd4 bxc4 35. Kxc4 Kd6 36. b4 Kc6 37. a4 Kb6 38. b5 axb5+ 39. axb5 g5 40. fxg5 hxg5 41. h3 f6 42. g3 f5 43. Kd3 Kxb5 44. h4 ) ( 33... e5 { counterattack } 34. fxe5+ Kxe5 35. cxb5 axb5 36. b3 Kd5 37. a4 bxa4 38. bxa4 Kc5 39. Ke4 Kb4 40. Ke5 Kxa4 41. Kd6 Kb5 42. Ke7 ) 34. Kxc4 e5 35. fxe5+ Kxe5 36. b4 f5 37. b5 axb5+ 38. Kxb5 f4 39. a4 g5 40. a5 g4 ( 40... Kd6 41. Kc4 Kc6 42. Kd4 Kb5 43. Ke4 Kxa5 44. Kf5 Kb5 45. h3 ) 41. Kc4 $1 ( 41. Kc4 $1 Ke4 ( 41... f3 42. gxf3 gxf3 43. Kd3 ) ( 41... Kd6 42. Kd4 ) 42. a6 f3 43. a7 f2 44. a8=Q+ ) 1-0
[Event "Madrid"]
[Site "?"]
[Date "1547.??.??"]
[Round "?"]
[White "Leonardo, Giovanni"]
[Black "Lopez, Ruy"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "C53"]
[EventDate "1600.??.??"]
[PlyCount "17"]

{ Games from historical chess matches, knockout events and match toournaments
are presented in this file. Selections have been made in most cases. Some
matches are given completely. All annotations have been rewritten.   Jan van
Reek.   The Spanish priest Ruy Lopez defeated the law student Leonardo in Rome
1560. Fourteen years later Leonardo travelled to Madrid for a revenge. } 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. b4 Bb6 6. a4 a6 7. Ba3 d6 8. d3 Bg4 9. Nbd2 { Leonardo's cautious play becomes apparent. He won this game. King
Philips II rewarded him well when Ruy Lopez was defeated with 3-2 in the match
for three won games. Three opening fragments from the event remained known. } 1-0
[Event "Paris"]
[Site "?"]
[Date "1821.??.??"]
[Round "3"]
[White "Lewis, William"]
[Black "Deschapelles, Alexandre"]
[Result "1-0"]
[Annotator "JvR"]
[EventDate "1821.??.??"]
[FEN "r1b2k2/pp2q1b1/2pp3r/4pp2/2B1P3/2N3Q1/PPP2PPP/3R1RK1 w - - 0 17"]
[PlyCount "21"]
[SetUp "1"]

{ The development of chess was stimulated in the coffee houses. Philidor and
Stamma played in Old Slaughter (London 1747). Only the result is known (+8, =1,
-1). At the beginning of the nineteenth century it became possible to travel
from London to Paris within a week. Lewis travelled as a tourist to Paris. At
the Cafe de la Regence he played three games in four hours against
Deschappeles. Lewis got a pawn and the move in each game. Two games ended in a
draw. The decisive combination in game three follows. } 17. f4 $1 { White opens the position for an attack on the central files. } 17... d5 18. Bb3 { Black threatened 18...Qc5+. } 18... dxe4 19. Nxe4 $1 { Central pawn vanish. } 19... fxe4 20. fxe5+ Ke8 21. Bf7+ Qxf7 22. Rxf7 Kxf7 23. Qb3+ $2 ( 23. Qf4+ { continues the attack. } ) 23... Ke7 $2 ( 23... Re6 { stops the attack. } ) 24. Qg8 Bf8 25. Qg5+ Kf7 26. Rf1+ Ke8 27. Qg8 { The players were ready for dinner in time. } 1-0
[Event "London m1"]
[Site "?"]
[Date "1834.??.??"]
[Round "15"]
[White "De la Bourdonnais, Louis Mahe"]
[Black "McDonnell, Alexander"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "D20"]
[EventDate "1834.??.??"]
[PlyCount "57"]

{ A match of 85 games in six matches was one of the longest fights in chess
history. Sometimes the Irishman McDonnell thought for 1 1/2 hours, because he
did not have to worry about a time control. It made a profound impression on
the public. His opponent the Frenchman De la Bourdonnais was a fine attacking
player. } 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nc3 Be7 7. Nf3 O-O 8. h3 c6 ( { The opening looks modern. Theory in the Queen's Gambit Accepted has become } 8... Nbd7 9. O-O Nb6 10. Bb3 c6 ) 9. Be3 Bf5 10. g4 Bg6 11. Ne5 Nbd7 12. Nxg6 hxg6 13. h4 $5 { White starts an attack on the king, although he has not
finished his development yet. } 13... Nb6 14. Bb3 Nfd5 $6 { A defender is removed. } ( 14... Qd7 15. h5 g5 $1 16. Bxg5 Nxg4 ) 15. h5 $1 Nxe3 16. fxe3 Bh4+ 17. Kd2 gxh5 18. Qf3 $1 Bg5 19. Raf1 $1 Qxd4+ 20. Kc2 Qf6 21. Rxh5 Qg6+ $2 ( 21... Qxf3 22. Rxf3 Bf6 23. Ne4 Nd7 24. g5 g6 25. Rh6 Bg7 26. Rxg6 { is favourable for White. } ) 22. e4 $1 Nd5 23. Rfh1 Bh6 24. g5 { The attack on the h-file decides the game. } 24... f5 25. Nxd5 cxd5 26. Bxd5+ Kh7 27. Rxh6+ gxh6 28. Rxh6+ Qxh6 29. gxh6 1-0
[Event "London m1"]
[Site "?"]
[Date "1834.??.??"]
[Round "20"]
[White "McDonnell, Alexander"]
[Black "De la Bourdonnais, Louis Mahe"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "C33"]
[EventDate "1834.??.??"]
[PlyCount "40"]

1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 d6 5. d4 Bg4 6. Qd3 Nc6 7. Bxf7+ $2 { White plays too wild. } ( { Stronger is } 7. Bb5 { with the threat of 8.d5. } ) 7... Kxf7 8. Qb3+ Kg6 ( 8... Ke7 $1 { is even better. } ) 9. Qxb7 Nxd4 10. Qxa8 Nf6 { This looks like real coffeehouse chess. White has not developed a piece and
abandoned his king. } 11. Na3 f3 $1 12. g3 ( 12. e5 c6 $1 13. exf6 fxg2+ 14. Kxg2 Bh3+ $1 15. Nxh3 Qg4+ 16. Kf1 ( 16. Kf2 Qf3+ 17. Kg1 Ne2# ) 16... Qe2+ 17. Kg1 Nf3# ) 12... Bh3+ 13. Ke1 Qg4 14. Be3 d5 $1 15. Qxa7 Nc6 16. Qxc7 d4 $1 17. Bd2 ( 17. Qxc6 dxe3 { (threatens ..f2#) } 18. Nxh3 Qxh3 { and 19...Qg2. } ) 17... Qxe4+ 18. Kd1 f2 19. Nxh3 Qf3+ 20. Kc1 Qxh1+ { Black played a wonderful game in the style of Greco. } 0-1
[Event "London m1"]
[Site "?"]
[Date "1834.??.??"]
[Round "21"]
[White "De la Bourdonnais, Louis Mahe"]
[Black "McDonnell, Alexander"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "C23"]
[EventDate "1834.??.??"]
[PlyCount "78"]

1. e4 e5 2. Bc4 Bc5 3. Qe2 Nf6 4. d3 Nc6 5. c3 Ne7 $6 6. f4 { The Lopez Gambit. } 6... exf4 7. d4 Bb6 8. Bxf4 ( { The odd } 8. e5 Nfd5 { can be played as well. } ) 8... d6 9. Bd3 Ng6 10. Be3 O-O 11. h3 Re8 12. Nd2 Qe7 13. O-O-O c5 14. Kb1 cxd4 15. cxd4 a5 16. Ngf3 Bd7 17. g4 h6 $6 18. Rdg1 a4 19. g5 hxg5 20. Bxg5 a3 { White occupies the centre and attacks on the King's side. Black pressures on
the centre and teases on the Queen's side. } 21. b3 $6 ( 21. Nc4 Bc7 22. e5 $1 { starts an attack in the centre. } 22... dxe5 23. dxe5 Bxe5 $2 24. Ncxe5 Nxe5 25. Nxe5 Qxe5 26. Qxe5 Rxe5 27. Bxf6 ) 21... Bc6 22. Rg4 Ba5 $6 23. h4 Bxd2 24. Nxd2 Ra5 $6 25. h5 $2 ( 25. Qf3 { prepares h5. } ) 25... Rxg5 $1 26. Rxg5 Nf4 27. Qf3 Nxd3 28. d5 ( 28. Qxd3 $2 Nxe4 $1 ) 28... Nxd5 $1 29. Rhg1 $1 ( 29. exd5 Qxg5 ) 29... Nc3+ 30. Ka1 ( 30. Kc2 Qxg5 $1 31. Rxg5 Ne1+ 32. Kxc3 Nxf3 { (Morphy). } ) 30... Bxe4 ( 30... Nxe4 $1 31. Rxg7+ Kh8 32. Nc4 Ng5 $1 { wins easily. } ) 31. Rxg7+ Kh8 32. Qg3 Bg6 $2 ( { Morphy analyses } 32... Qf6 $1 33. Rg8+ $1 Kh7 34. Qg7+ ( 34. Rg7+ Kh6 35. Qe3+ Nf4 ) 34... Qxg7 35. R1xg7+ Kh6 36. Rxe8 Nb4 ) 33. hxg6 Qe1+ $1 { Are both sides lost? } 34. Rxe1 $2 ( 34. Nb1 $1 Kxg7 35. gxf7+ Qxg3 36. fxe8=N+ Kf8 37. Rxg3 { wins beautifully. } ) 34... Rxe1+ 35. Qxe1 Nxe1 36. Rh7+ Kg8 37. gxf7+ Kxh7 38. f8=N+ Kh6 39. Nb1 Nc2# { An exciting struggle shows McDonnell as a tactician. } 0-1
[Event "London m3"]
[Site "?"]
[Date "1834.??.??"]
[Round "5"]
[White "De la Bourdonnais, Louis Mahe"]
[Black "McDonnell, Alexander"]
[Result "1-0"]
[Annotator "JvR"]
[EventDate "1834.??.??"]
[FEN "5r2/p2q1r1p/7k/3pQ1R1/5pbP/8/PP1B1PP1/4R1K1 w - - 0 28"]
[PlyCount "3"]
[SetUp "1"]

{ La Bourdonnais takes a 'revenge for Waterloo'. } 28. Rh5+ Bxh5 29. Qg5# 1-0
[Event "London m4"]
[Site "?"]
[Date "1834.??.??"]
[Round "1"]
[White "McDonnell, Alexander"]
[Black "De la Bourdonnais, Louis Mahe"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "C23"]
[EventDate "1834.??.??"]
[PlyCount "106"]

1. e4 e5 2. Bc4 Bc5 3. c3 Qe7 4. Nf3 d6 5. O-O Bb6 6. d4 Nf6 7. Na3 Bg4 8. Nc2 Nbd7 9. Qd3 d5 $6 ( 9... O-O { is safe. } ) 10. exd5 $1 e4 11. Qd2 exf3 12. Re1 Ne4 13. Qf4 f5 14. gxf3 g5 15. Qe3 Ne5 $1 16. Bb5+ $1 c6 17. fxg4 Nxg4 18. Qe2 cxb5 19. f3 { The second fork by a pawn on f3. } 19... Ngf6 20. fxe4 Nxe4 21. Qxb5+ Qd7 22. Qxd7+ Kxd7 23. c4 Rae8 24. c5 Bd8 { The complications have led to a big advantage for White. } 25. d6 $6 { The centre is weakened. } ( 25. a4 f4 26. Ra3 h5 ( 26... a5 27. Rb3 ) 27. b4 { White has a strong attack. } ) 25... f4 26. b4 Rhf8 27. Rf1 h5 28. Na3 Bf6 29. Bb2 g4 30. Nc4 f3 31. Ne5+ Bxe5 32. dxe5 h4 33. Rad1 f2+ 34. Kh1 h3 $6 ( 34... g3 $1 { keeps on trucking. } ) 35. Rd3 Rg8 36. b5 $6 ( 36. Re3 $1 g3 37. hxg3 Nxg3+ 38. Rxg3 Rxg3 39. Rxf2 { is much better. } ) 36... g3 37. hxg3 Rxg3 $1 38. Rd4 Reg8 $2 ( 38... h2 $1 { wins immediately. } ) 39. e6+ Kd8 40. Rdd1 $2 ( 40. Rxe4 Rg1+ 41. Kh2 Rxf1 42. Rf4 $1 Re1 43. Bf6+ Kc8 44. d7+ { starts a strong counterattack. } ) 40... h2 $1 { The threat ..Rg1+ is too strong. } 41. e7+ ( 41. Kxh2 Rg2+ $1 42. Kh3 R2g5 $19 ) 41... Kd7 42. c6+ bxc6 43. bxc6+ Kxc6 44. e8=Q+ Rxe8 45. Kxh2 Re6 46. Rc1+ Kb5 47. a4+ Kb4 48. Bc3+ Rxc3 49. Rxc3 Kxc3 50. d7 Rd6 51. Kg2 Rxd7 52. Rc1+ Kd3 53. Kf1 Ke3 { The calculations were very difficult for the players in this game. } 0-1
[Event "London m4"]
[Site "?"]
[Date "1834.??.??"]
[Round "4"]
[White "De la Bourdonnais, Louis Mahe"]
[Black "McDonnell, Alexander"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "D20"]
[EventDate "1834.??.??"]
[PlyCount "72"]

1. d4 d5 2. c4 dxc4 3. e4 e5 4. d5 f5 5. Nc3 Nf6 6. Bxc4 Bc5 7. Nf3 Qe7 8. Bg5 Bxf2+ $5 9. Kf1 $2 ( { White can play } 9. Kxf2 Qc5+ 10. Ke1 Qxc4 11. Nxe5 Qa6 ) 9... Bb6 10. Qe2 f4 11. Rd1 Bg4 12. d6 $5 cxd6 13. Nd5 Nxd5 $3 { McDonnell sacrifices a queen for two pieces and an attack. } 14. Bxe7 Ne3+ 15. Ke1 Kxe7 16. Qd3 Rd8 $1 { Black does not win the exchange, but continues his development. } 17. Rd2 ( 17. h3 Bh5 18. Rh2 Nc6 { and ..Rac8. } ) 17... Nc6 18. b3 Ba5 19. a3 Rac8 $5 { Again Black chooses development instead of a material win (19...Nxg2). } 20. Rg1 $6 ( { The last chance is } 20. Kf2 { but } 20... Bb6 21. Ke1 Na5 $1 { will ruin the defence line. } ) 20... b5 $5 21. Bxb5 Bxf3 22. gxf3 Nd4 23. Bc4 Nxf3+ 24. Kf2 Nxd2 25. Rxg7+ Kf6 26. Rf7+ Kg6 27. Rb7 Ndxc4 28. bxc4 Rxc4 29. Qb1 Bb6 30. Kf3 Rc3 31. Qa2 Nc4+ 32. Kg4 Rg8 33. Rxb6 axb6 34. Kh4 Kf6 35. Qe2 Rg6 36. Qh5 Ne3 { The positional sacrifice of a queen for two pieces is wonderful! } 0-1
[Event "London m4"]
[Site "?"]
[Date "1834.??.??"]
[Round "8"]
[White "McDonnell, Alexander"]
[Black "De la Bourdonnais, Louis Mahe"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "C37"]
[EventDate "1834.??.??"]
[PlyCount "37"]

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Nc3 { McDonnell plays his variation of the King's Gambit. } 5... gxf3 6. Qxf3 Bh6 $2 ( { Later De la Bourdonnais tried the quiet } 6... d6 ) 7. d4 Nc6 8. O-O $1 Nxd4 { Black has built a forward defence with a knight, pawn and bishop. A second
piece sacrifice opens the position. } 9. Bxf7+ $1 Kxf7 10. Qh5+ Kg7 11. Bxf4 Bxf4 12. Rxf4 Nf6 ( 12... Nh6 { (Loewenthal) } 13. Raf1 ) 13. Qg5+ Kf7 14. Raf1 Ke8 15. Rxf6 Qe7 16. Nd5 Qc5 17. Kh1 Ne6 18. Rxe6+ $1 dxe6 19. Nf6+ { A delightful game! } 1-0