Icannos/chess_studies huggingface dataset:
[Event "Candidates' final"]
[Site "Belgrade"]
[Date "1977.??.??"]
[Round "7"]
[White "Korchnoi, Viktor"]
[Black "Spassky, Boris"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2610"]
[ECO "D58"]
[EventDate "1977.??.??"]
[PlyCount "95"]
[WhiteElo "2645"]

1. c4 e6 2. Nc3 d5 3. d4 Be7 4. Nf3 Nf6 5. Bg5 O-O 6. e3 h6 7. Bh4 b6 8. Rc1 Bb7 9. Bxf6 Bxf6 10. cxd5 exd5 11. b4 $1 { Hort suggested this move during the preparation. } 11... c6 12. Be2 Nd7 { Black reacts calmly and equalises easily. } 13. O-O a5 14. b5 c5 15. dxc5 Nxc5 16. Nd4 Qd6 17. Bg4 $5 Rfd8 18. Re1 Ne6 19. Bxe6 fxe6 20. Nc6 Bxc6 21. bxc6 Bxc3 $6 ( { It is wiser to accept the sacrifice with } 21... Qxc6 $5 22. Ne4 $1 Qe8 23. Nxf6+ gxf6 24. Qg4+ Kh7 ) 22. Rxc3 Rac8 23. Qc2 e5 24. c7 Rd7 25. Rc1 d4 26. Rc6 Qd5 27. Qb1 d3 28. Qxb6 { The crucial point has been reached. } 28... d2 $2 ( { Correct is } 28... Qxa2 $1 29. Qb7 Rf8 $1 30. h3 Qxf2+ 31. Kh2 d2 32. Rd1 Qxe3 33. c8=Q Rxb7 34. Qxb7 Qf4+ 35. Kg1 ( 35. Kh1 $2 Qa4 $1 ) 35... Qf2+ 36. Kh2 Qf4+ $11 ) 29. Rd1 Qxa2 30. h3 $1 ( { A blunder is } 30. Qb7 $2 { due to } 30... Qa4 $1 31. Qxc8+ Kh7 32. h3 $1 ( { Keene goes on with } 32. Qh8+ $2 Kxh8 33. c8=Q+ Kh7 34. Rc2 Qa1 $1 { and Black wins wonderfully) } ) 32... Qxc6 33. Rxd2 $1 Qc1+ 34. Kh2 Qxd2 35. Qb8 { and a superb draw. } ) 30... Qa4 $6 ( { A charming defence is } 30... Kh8 $1 31. Qb7 Qg8 32. Qa6 $1 ) 31. Rxd2 $1 Rxd2 32. Qb7 Rdd8 33. cxd8=Q+ Rxd8 { Impressive tactics have ruined the black pawn structure. } 34. Rc7 Qa1+ 35. Kh2 e4 36. Qxe4 Qf6 37. f4 Qf8 38. Ra7 Qc5 39. Qb7 Qc3 40. Qe7 Rf8 41. e4 Qd4 42. f5 h5 43. Rxa5 Qd2 44. Qe5 Qg5 45. Ra6 Rf7 46. Rg6 Qd8 47. f6 h4 48. fxg7 { Korchnoi scored an impressive win. } 1-0
[Event "Candidates' final"]
[Site "Belgrade"]
[Date "1977.??.??"]
[Round "8"]
[White "Spassky, Boris"]
[Black "Korchnoi, Viktor"]
[Result "0-1"]
[Annotator "JvR"]
[BlackElo "2645"]
[ECO "C19"]
[EventDate "1977.??.??"]
[PlyCount "132"]
[WhiteElo "2610"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 Bd7 8. dxc5 Qc7 9. Bd3 Ba4 10. O-O Nd7 11. Nd4 $6 Nxc5 12. Bb5+ Bxb5 13. Nxb5 Qxe5 14. Re1 $2 ( { Better is } 14. Qd4 Qxd4 15. cxd4 Na6 16. Nd6+ Kf8 17. Nxb7 ) 14... Ne4 $1 15. f3 a6 16. Nd4 Nxc3 17. Qd2 ( { Or } 17. Rxe5 Nxd1 18. Rb1 Ng6 19. Re1 Nc3 20. Rxb7 O-O ) 17... Qc7 18. a4 Rc8 19. Bb2 { Black has refuted the attack on the queenside and won a pawn. } 19... b5 $6 ( 19... Qc4 $1 20. Ba3 Rc7 { prevents counter-play. } ) 20. Bxc3 Qxc3 21. Qxc3 Rxc3 22. axb5 axb5 23. Nxb5 Rxc2 24. Nd6+ Kd7 25. Nxf7 Rb8 26. Ra7+ Ke8 27. Ne5 Rbb2 28. Ra8+ Nc8 29. Nd3 Rb6 30. h4 Kd7 31. Ra4 Kd6 32. Rg4 Rd2 33. Nf4 e5 34. Nh5 g6 35. Nf6 Rb7 36. Ne8+ Kd7 $6 ( 36... Ke6 37. Rg5 Kf7 { keeps a plus. } ) 37. Rxe5 Rb1+ 38. Kh2 Ne7 39. Ra4 Nc6 $2 ( 39... Rb7 $1 { is necessary for the defence. } ) 40. Nf6+ Kd6 41. Rg5 Rb7 42. Ra6 Rf7 43. Nxh7 Kc5 44. Rxg6 Ne5 45. Ng5 $1 Nxg6 46. Rxg6 Ra7 47. h5 $1 Rda2 $1 { Black finds an excellent defensive manoeuvre. } 48. f4 ( { A promising variation is } 48. h6 $5 R2a6 $1 49. Rxa6 Rxa6 50. h7 { but } ( 50. Nf7 $2 d4 $1 $19 ) 50... Rh6+ $1 51. Kg3 d4 52. Kf2 Kc4 53. f4 d3 54. f5 Kc3 55. Ne4+ Kd4 ( 55... Kc2 $2 56. g4 $1 Rxh7 57. f6 d2 58. Nxd2 Kxd2 59. g5 $18 ) 56. Ng5 Kc3 { draws. } ) 48... d4 49. h6 d3 50. Rg8 R2a6 51. h7 $4 ( { A draw achieves } 51. Rc8+ Kd4 52. h7 Rh6+ 53. Kg3 Raxh7 54. Nxh7 Rxh7 55. Kf2 Rh1 ) 51... Rxh7+ $1 52. Kg3 ( { The pointe is } 52. Nxh7 d2 $1 53. Rd8 Rd6 $19 ) 52... Rd7 53. Rc8+ Kb4 54. Rb8+ Ka3 55. Ne4 d2 56. Nxd2 Rxd2 57. Rg8 Kb4 58. Kf3 Kc5 59. g3 Ra3+ 60. Ke4 Re2+ 61. Kf5 Kd6 62. g4 Ra5+ 63. Kg6 Re6+ 64. Kh7 Ra7+ 65. Rg7 Rxg7+ 66. Kxg7 Re4 { Korchnoi showed fighting spirit.  The match
ended halfway as a serious chess engagement. Many incidents waned the
concentration of the players. Korchnoi eventually won the battle over twenty
games with 10 1/2 - 7 1/2 (+7, =7, -4). } 0-1
[Event "Wch29"]
[Site "Baguio City"]
[Date "1978.??.??"]
[Round "8"]
[White "Karpov, Anatoly"]
[Black "Korchnoi, Viktor"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2665"]
[ECO "C80"]
[EventDate "1978.??.??"]
[PlyCount "55"]
[WhiteElo "2725"]

{ One million dollars were at stake in the world championship, a record in
chess. The match was played in Baguio, summer resort of Marcos, president of
the Philippines. Six wins were needed for the victory. Draws did not count. } 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. Nbd2 Nc5 10. c3 g6 $5 { Korchnoi conceived a new approach at the board. } 11. Qe2 Bg7 12. Nd4 Nxe5 13. f4 Nc4 $2 ( { Correct is } 13... Ned3 $1 14. f5 gxf5 15. Nxf5 Rg8 { Black has counter-play. } ) 14. f5 gxf5 15. Nxf5 Rg8 ( 15... Bf6 $1 16. Nxc4 bxc4 17. Bc2 Qd7 { is slightly better. } ) 16. Nxc4 $1 dxc4 17. Bc2 Nd3 $6 ( { More resistance is offered by } 17... Qd5 18. Nxg7+ Rxg7 19. Bh6 Rg6 $1 { (Larsen). } ) 18. Bh6 $5 Bf8 19. Rad1 Qd5 20. Bxd3 cxd3 21. Rxd3 Qc6 22. Bxf8 Qb6+ 23. Kh1 Kxf8 24. Qf3 Re8 25. Nh6 Rg7 26. Rd7 $1 { The final blow. } 26... Rb8 ( 26... Bxd7 27. Qxf7+ Rxf7 28. Rxf7# ) 27. Nxf7 Bxd7 28. Nd8+ 1-0
[Event "Wch29"]
[Site "Baguio City"]
[Date "1978.??.??"]
[Round "11"]
[White "Korchnoi, Viktor"]
[Black "Karpov, Anatoly"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2725"]
[ECO "B20"]
[EventDate "1978.??.??"]
[PlyCount "100"]
[WhiteElo "2665"]

1. g3 c5 2. Bg2 Nc6 3. e4 g6 4. d3 Bg7 5. f4 d6 6. Nf3 Nf6 7. O-O O-O 8. c3 Rb8 9. Qe2 Ne8 ( 9... b5 { is more active. } ) 10. Be3 Nc7 11. d4 cxd4 12. cxd4 Bg4 13. Rd1 d5 14. e5 Qd7 15. Nc3 Rfc8 16. Qf1 $1 { White prepares h3. } 16... b5 17. h3 Bxf3 18. Bxf3 b4 $2 ( { Better is } 18... f5 ) 19. Bg4 $1 ( { The direct } 19. Na4 Nxe5 $1 20. dxe5 Qxa4 21. Bxd5 { leads to equality. } ) 19... e6 20. Na4 Na5 ( { Now } 20... Nxe5 $6 21. Nc5 Nxg4 22. Nxd7 Nxe3 23. Qe2 Nxd1 24. Nxb8 Bxd4+ 25. Kh2 Nxb2 26. Nc6 Bf6 { is awkward for Black (Timman). } ) 21. Nc5 $1 { The knight has reached a strong square. } 21... Qe8 22. Be2 Nb7 23. Nxb7 Rxb7 24. Rdc1 Qd7 25. Rc2 b3 $2 26. axb3 Rxb3 $2 { Karpov blunders terribly. } 27. Qc1 $1 Rb7 28. Ba6 $1 { Black loses the exchange. } 28... Rcb8 29. Bxb7 Rxb7 30. Ra3 h6 31. Rac3 Nb5 32. Rc8+ Kh7 33. R2c6 f6 34. Kg2 Qf7 35. Qc2 a5 36. g4 fxe5 37. fxe5 a4 38. Ra8 Na7 39. Ra6 Qe7 40. Rxa4 Rc7 41. Qb3 Nc6 42. Ra1 Nb4 43. Rc1 Rc4 44. Rb8 Rxc1 45. Bxc1 Qc7 46. Rxb4 Qxc1 47. Qd3 h5 48. Rb6 Bh6 49. gxh5 Qg5+ 50. Qg3 Qd2+ 1-0
[Event "Wch29"]
[Site "Baguio City"]
[Date "1978.??.??"]
[Round "13"]
[White "Korchnoi, Viktor"]
[Black "Karpov, Anatoly"]
[Result "0-1"]
[Annotator "JvR"]
[BlackElo "2725"]
[ECO "D53"]
[EventDate "1978.??.??"]
[PlyCount "122"]
[WhiteElo "2665"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Be7 5. Bg5 h6 6. Bh4 O-O 7. Rc1 b6 8. Bxf6 Bxf6 9. cxd5 exd5 10. g3 { The seconds have advised this calm move. } 10... c6 11. Bg2 Bf5 12. O-O Qd6 13. e3 Nd7 14. Ne1 Rfe8 15. Nd3 g6 16. Nf4 Bg7 17. g4 Be6 18. h3 Nf8 19. Nxe6 Nxe6 20. Qd3 Rad8 21. Rc2 Nc7 22. Na4 Qd7 23. b3 Re6 24. Nc3 Rd6 25. b4 Bf8 26. Ne2 b5 $5 27. Qb3 Na8 $1 28. a4 bxa4 ( { No good is } 28... a6 29. a5 ) 29. Qxa4 Nb6 30. Qb3 Rb8 31. Nf4 Nc4 { Black has achieved counter-play. } 32. Qa4 f5 $5 33. gxf5 Qxf5 34. Qxa7 Rxb4 35. Ra2 Qc8 $6 ( 35... Rd7 36. Qa8 g5 37. Nh5 Qg6 38. Ng3 { defends stronger. } ) 36. Rc1 Rb7 37. Qa4 Rf7 38. Rxc4 $1 dxc4 39. Qxc4 Qf5 40. Nd3 $1 { Pawn c6 will fall. } 40... Bg7 41. Ra7 Rf6 42. Rxf7 Rxf7 43. d5 Be5 44. dxc6 Kg7 45. Be4 Qg5+ 46. Kf1 Bd6 47. Bd5 Re7 48. Bf3 $6 ( 48. Nc5 Bxc5 49. Qxc5 { keeps the initiative. } ) 48... h5 49. Bd1 Qf5 50. Ke2 Re4 51. Qc3+ Qf6 52. Qb3 Qf5 53. Qb7+ Re7 54. Qb2+ Kh7 55. Qd4 Bc7 { Korchnoi still has to make one move under time pressure. } 56. Qh4 $4 ( { Correct is } 56. Qc5 ) 56... Re4 $1 57. f4 Bb6 $1 58. Bc2 Rxe3+ 59. Kd2 Qa5+ 60. Kd1 Qa1+ 61. Kd2 Re4 0-1
[Event "Wch29"]
[Site "Baguio City"]
[Date "1978.??.??"]
[Round "14"]
[White "Karpov, Anatoly"]
[Black "Korchnoi, Viktor"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2665"]
[ECO "C82"]
[EventDate "1978.??.??"]
[PlyCount "99"]
[WhiteElo "2725"]

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. c3 Bc5 10. Nbd2 O-O 11. Bc2 Bf5 12. Nb3 Bg4 $5 13. h3 Bh5 14. g4 Bg6 15. Bxe4 $1 ( { Karpov diverts from } 15. Nfd4 { in Makarov-Karasev, Orenburg 1967. } ) 15... dxe4 16. Nxc5 exf3 17. Bf4 Qxd1 $1 { Black has to exchange the queens, because he can protect f3 in the endgame. } 18. Raxd1 Nd8 $1 { The advance e6 cannot be allowed. } 19. Rd7 Ne6 20. Nxe6 fxe6 21. Be3 Rac8 22. Rfd1 Be4 23. Bc5 Rfe8 24. R7d4 Bd5 25. b3 a5 26. Kh2 Ra8 27. Kg3 Ra6 $6 ( { Better is } 27... a4 $1 28. c4 bxc4 29. bxc4 Bc6 ) 28. h4 Rc6 $2 ( 28... Bc6 { is forced. } ) 29. Rxd5 $3 { A brilliant move opens the defence line. } 29... exd5 30. Rxd5 Rce6 31. Bd4 c6 32. Rc5 $1 Rf8 $2 ( { More resistance offers } 32... Rd8 $1 33. Kxf3 Rd5 34. Rxd5 cxd5 35. a3 { (Karpov). White has
consolidated the queenside and will start an attack on the other flank. } ) 33. a4 $1 bxa4 34. bxa4 g6 35. Rxa5 Ree8 36. Ra7 Rf7 37. Ra6 $1 Rc7 38. Bc5 $1 Rcc8 39. Bd6 Ra8 40. Rxc6 Rxa4 41. Kxf3 h5 42. gxh5 gxh5 43. c4 Ra2 44. Rb6 Kf7 45. c5 Ra4 46. c6 Ke6 47. c7 Kd7 48. Rb8 Rc8 49. Ke3 Rxh4 50. e6+ $1 ( 50. e6+ Kxe6 51. Bg3 $1 ) 1-0
[Event "Wch29"]
[Site "Baguio City"]
[Date "1978.??.??"]
[Round "17"]
[White "Korchnoi, Viktor"]
[Black "Karpov, Anatoly"]
[Result "0-1"]
[Annotator "JvR"]
[BlackElo "2725"]
[ECO "E47"]
[EventDate "1978.??.??"]
[PlyCount "78"]
[WhiteElo "2665"]

1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Bd3 c5 6. d5 b5 $5 7. dxe6 fxe6 8. cxb5 a6 $5 9. Ne2 d5 10. O-O e5 11. a3 axb5 $5 12. Bxb5 Bxc3 13. bxc3 Ba6 14. Rb1 Qd6 $2 ( 14... Bxb5 15. Rxb5 c4 { keeps compensation for the pawn. } ) 15. c4 d4 16. Ng3 Nc6 17. a4 Na5 18. Qd3 Qe6 19. exd4 cxd4 20. c5 Rfc8 21. f4 Rxc5 22. Bxa6 Qxa6 23. Qxa6 Rxa6 24. Ba3 Rd5 25. Nf5 Kf7 $6 26. fxe5 Rxe5 27. Rb5 Nc4 28. Rb7+ Ke6 29. Nxd4+ Kd5 30. Nf3 Nxa3 31. Nxe5 Kxe5 32. Re7+ Kd4 33. Rxg7 $6 ( 33. Rf4+ Kd5 34. Rxg7 { (Pachman) } 34... Nc4 35. Re7 { gives good chances. } ) 33... Nc4 34. Rf4+ Ne4 35. Rd7+ Ke3 36. Rf3+ Ke2 37. Rxh7 Ncd2 38. Ra3 Rc6 39. Ra1 $4 { Korchnoi blubders. } ( { Correct is } 39. g3 $1 Nf3+ 40. Kg2 Ne1+ 41. Kh1 Rf6 $11 ) 39... Nf3+ $1 { Viktor Korchnoi and Petra Leeuwerik had made a comment
about Baturinsky, head of the Soviet delegation. The throat of this Stalin
butcher should be cut. The tone was set at the beginning of the match.   Many
incidents followed, with roles for hypnotisers and gurus. Korchnoi failed
twice in time trouble and trailed by 4-1.  Karpov got a cake with the final
position from the last game. He grabbed the white king and ate it. } ( { The end will be } 39... Nf3+ 40. gxf3 Rg6+ 41. Kh1 Nf2# ) 0-1
[Event "Wch29"]
[Site "Baguio City"]
[Date "1978.??.??"]
[Round "21"]
[White "Korchnoi, Viktor"]
[Black "Karpov, Anatoly"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2725"]
[ECO "D37"]
[EventDate "1978.??.??"]
[PlyCount "119"]
[WhiteElo "2665"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5 8. Qc2 Nc6 9. Rd1 Qa5 10. a3 Re8 $5 11. Nd2 ( { The answer to the novelty should not be } 11. b4 $2 Nxb4 12. axb4 Bxb4 13. Be5 Ne4 14. Rc1 f6 { (Ree). } ) 11... e5 $5 12. Bg5 Nd4 $1 13. Qb1 $1 ( { Korchnoi avoids } 13. exd4 exd4+ 14. Ne2 Ng4 15. Bh4 { (Larsen) } 15... d3 16. Qxd3 Ne5 17. Qxd5 Bf5 ) 13... Bf5 14. Bd3 e4 { Karpov attacks over a broad front. } 15. Bc2 ( 15. Bf1 $1 Ng4 { (Kholmov) } 16. cxd5 Ne5 17. exd4 Nf3+ 18. gxf3 exf3+ 19. Nde4 $1 Bxe4 20. Qc1 { gives great complications. } ) 15... Nxc2+ 16. Qxc2 Qa6 $2 ( { Correct is } 16... dxc4 17. Bxf6 { Now } 17... gxf6 18. b4 $2 cxb3 19. Nxb3 Qxa3 20. Ra1 Qb4 21. Ra4 { (Kholmov) can be refuted by } 21... Rac8 $1 ) 17. Bxf6 Qxf6 18. Nb3 Bd6 19. Rxd5 Re5 20. Nd4 Rc8 21. Rxe5 Qxe5 22. Nxf5 ( 22. f4 $1 { improves white's position. } ) 22... Qxf5 23. O-O $1 { Korchnoi gives and takes a pawn. } 23... Rxc4 24. Rd1 Qe5 25. g3 a6 26. Qb3 b5 27. a4 Rb4 28. Qd5 Qxd5 29. Rxd5 Bf8 30. axb5 a5 $1 31. Rd8 ( { The exchanges by } 31. b6 $5 Rxb6 32. Rxa5 Rxb2 33. Nxe4 { lead to winning chances for White. } ) 31... Rxb2 32. Ra8 f5 33. Rxa5 Bb4 34. Ra8+ Kf7 35. Na4 Rb1+ 36. Kg2 Bd6 37. Ra7+ Kf6 38. b6 Bb8 $6 ( 38... h5 { is more useful. } ) 39. Ra8 Be5 $2 { Karpov makes some quick moves at the end of the first session. } ( { Correct is } 39... Bd6 40. Ra6 Ke5 41. Ra7 { (Korchnoi) } 41... Rb4 { Black has counter-play. } ) 40. Nc5 $1 Bd6 41. b7 $1 Ke7 42. Rg8 Be5 43. f4 $1 exf3+ 44. Kxf3 Kf7 45. Rc8 Ke7 46. h3 h5 47. Rg8 Kf7 48. Rd8 g5 49. g4 hxg4+ 50. hxg4 Ke7 51. Rg8 fxg4+ 52. Kxg4 Kf7 53. Rc8 Bd6 54. e4 Rg1+ 55. Kf5 g4 56. e5 $1 { Korchnoi wants to humiliate his opponent at the finish. } 56... Rf1+ 57. Ke4 Re1+ 58. Kd5 Rd1+ 59. Nd3 Rxd3+ 60. Kc4 1-0
[Event "Wch29"]
[Site "Baguio City"]
[Date "1978.??.??"]
[Round "27"]
[White "Korchnoi, Viktor"]
[Black "Karpov, Anatoly"]
[Result "0-1"]
[Annotator "JvR"]
[BlackElo "2725"]
[ECO "A29"]
[EventDate "1978.??.??"]
[PlyCount "81"]
[WhiteElo "2665"]

1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Nd5 Nxd5 6. cxd5 Nd4 7. Nxd4 exd4 8. Qc2 Qe7 9. Bg2 Bc5 10. O-O O-O 11. e3 Bb6 12. a4 dxe3 13. dxe3 a5 14. Bd2 Bc5 15. Bc3 d6 16. Qd2 b6 17. Rfe1 Bd7 18. e4 Rfe8 19. Kh1 c6 $1 20. e5 cxd5 21. Bxd5 Rad8 22. Qf4 Qf8 23. Qf3 dxe5 24. Bxe5 Bg4 $1 25. Qxg4 Rxd5 26. Bc3 Red8 27. Kg2 Bd4 28. Rac1 g6 29. Qe2 Qd6 30. Bxd4 Rxd4 { Korchnoi is short on time. He fails to find the escape. } 31. Qb5 $2 ( { No pawn loses } 31. Qf3 $1 Rxa4 32. Rc6 Qd5 ( { Timman's } 32... Qd4 33. Re7 Rf8 $2 { is refuted by } 34. Rc8 $1 Qg7 35. Qa8 $18 ) 33. Qxd5 Rxd5 34. Rxb6 $11 ) 31... Rb4 $1 32. Re8+ Kg7 33. Rxd8 Qxd8 34. Qe2 Qd5+ 35. f3 Rxa4 36. Rc2 Rd4 37. Qe3 b5 38. h4 h5 39. Qe2 a4 40. Qe3 b4 41. Rf2 { Karpov has scored 5-2 and reached match point. } 0-1
[Event "Wch29"]
[Site "Baguio City"]
[Date "1978.??.??"]
[Round "28"]
[White "Karpov, Anatoly"]
[Black "Korchnoi, Viktor"]
[Result "0-1"]
[Annotator "JvR"]
[BlackElo "2665"]
[ECO "C82"]
[EventDate "1978.??.??"]
[PlyCount "122"]
[WhiteElo "2725"]

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. c3 Nc5 10. Bc2 Bg4 11. Re1 Be7 12. Nbd2 Qd7 13. Nb3 Ne6 14. h3 Bh5 15. Bf5 Ncd8 16. Be3 a5 17. Bc5 a4 18. Bxe7 Qxe7 19. Nbd2 c6 20. b4 Ng5 21. Qe2 g6 22. Bg4 Bxg4 23. hxg4 Nde6 24. Qe3 h5 $1 { Korchnoi takes the initiative. } 25. Nxg5 Qxg5 26. Qxg5 Nxg5 27. gxh5 Rxh5 28. Nf1 Rh4 29. Rad1 Ke7 30. f3 Ne6 31. Ne3 Rd8 $1 32. Ng4 Ng5 33. Ne3 Ne6 34. Ng4 Ng7 35. Ne3 Nf5 36. Nc2 $1 Rc4 37. Rd3 d4 $1 38. g4 Ng7 39. Nxd4 Ne6 40. Red1 Nxd4 41. cxd4 Rxb4 42. Kf2 c5 $1 43. d5 $1 ( { The alternative is } 43. Ke3 $5 Rdxd4 $1 44. Rxd4 cxd4+ 45. Rxd4 Rb2 46. Ke4 a3 47. Rd5 $1 ) 43... Rb2+ 44. Kg3 $2 { Karpov fails with his second move after the adjournment. } ( { The commentators overlook } 44. R3d2 $1 Rxd5 45. Rxb2 Rxd1 46. Rxb5 Rd2+ 47. Ke3 Rxa2 48. Rxc5 $11 ) 44... Rxa2 45. Re3 b4 46. e6 Ra3 47. Re2 ( { Langeweg analyses } 47. Rxa3 bxa3 48. exf7 Rb8 $1 49. Ra1 Rb3 50. Kf4 Kxf7 51. Ke5 Ke7 $1 52. d6+ Kd7 $19 ) 47... fxe6 48. Rxe6+ Kf7 49. Rde1 Rd7 $1 50. Rb6 Rd3 51. Ree6 R3xd5 52. Rxg6 a3 53. Rbf6+ Ke7 54. Re6+ Kf8 55. Ref6+ Ke7 56. Re6+ Kd8 57. Ra6 Rb7 58. Rg8+ Kc7 59. Rg7+ Rd7 60. Rg5 b3 61. Rxc5+ Kb8 { Korchnoi seemed to be
beaten in the match, but played an energetic game. he score became 5-3. } 0-1
[Event "Wch29"]
[Site "Baguio City"]
[Date "1978.??.??"]
[Round "29"]
[White "Korchnoi, Viktor"]
[Black "Karpov, Anatoly"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2725"]
[ECO "A19"]
[EventDate "1978.??.??"]
[PlyCount "157"]
[WhiteElo "2665"]

1. c4 Nf6 2. Nc3 e6 3. e4 c5 4. e5 Ng8 5. d4 cxd4 6. Qxd4 Nc6 7. Qe4 d6 8. Nf3 dxe5 9. Nxe5 Nf6 10. Nxc6 Qb6 11. Qf3 bxc6 12. Be2 Bb7 13. O-O c5 14. Qh3 Be7 15. Bf3 O-O 16. b3 Rfd8 17. Be3 Bc6 18. Na4 Qc7 19. Bxc6 Qxc6 20. Rad1 Rac8 21. Qg3 Bd6 22. Qh4 Be7 23. f3 { White continues the game, because he exerts slight pressure on c5. } 23... Kf8 24. Qf2 Rxd1 25. Rxd1 Qc7 26. Qg3 Qxg3 27. hxg3 h5 28. Kf2 Ke8 29. Ke2 g6 30. Nc3 a6 31. Na4 Rc6 32. Rh1 Bd6 33. Bf2 Nd7 34. g4 $1 { Korchnoi opens a new front on the kingside. } 34... hxg4 35. Rh8+ Ke7 36. fxg4 g5 ( 36... Be5 $1 { activates the bishop (Timman). } ) 37. Be3 f6 38. Nc3 Kf7 39. Rh7+ Ke8 40. Ne4 Be7 41. Rh6 Kf7 42. Rh7+ Kf8 43. Rh8+ Kf7 44. Bd2 Nf8 45. Rh1 Kg6 46. Rd1 { White regroups his troops. } 46... f5 $1 47. Nf2 Bd6 $6 ( 47... Rd6 $1 { solves all problems. } ) 48. Bc3 Nd7 49. gxf5+ exf5 50. g4 $1 Nb6 $1 51. Kf3 Be7 52. Ba5 Rf6 53. Kg2 fxg4 54. Nxg4 Re6 55. Kf3 Bf6 56. Nxf6 Rxf6+ 57. Kg4 Nc8 58. Bd8 Rf4+ 59. Kg3 Rf5 60. a4 Kf7 $6 ( { The active } 60... Re5 $1 61. Kf3 Ne7 62. Rd6+ Kh5 63. Bxe7 Rxe7 64. Rxa6 g4+ { gives sufficient counter-play. } ) 61. Rd3 Re5 62. Kg4 Kg6 63. a5 Re4+ 64. Kf3 { Karpov suffers from weaknesses. } 64... Rf4+ $2 { Again he fails too passively. } ( { Correct is } 64... Kf5 $1 { (Timman) } 65. Bxg5 $1 Rd4 $1 66. Rxd4 cxd4 67. Bf4 Ne7 { White will not make progress. } ) 65. Ke3 Rh4 66. Rd5 Rh3+ 67. Kd2 Rxb3 68. Rxc5 Rb8 69. Rc6+ Kf5 70. Rxa6 g4 71. Rf6+ Ke4 72. Bc7 Rb2+ 73. Kc3 Rb7 74. Bh2 Rh7 75. Bb8 Rb7 76. Bg3 Rb1 77. Rf4+ Ke3 78. Rf8 Ne7 79. a6 { Korchnoi was the second game in a row. The score was 5-4. } 1-0
[Event "Wch29"]
[Site "Baguio City"]
[Date "1978.??.??"]
[Round "31"]
[White "Korchnoi, Viktor"]
[Black "Karpov, Anatoly"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2725"]
[ECO "D36"]
[EventDate "1978.??.??"]
[PlyCount "141"]
[WhiteElo "2665"]

1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 Nbd7 8. Nf3 Re8 9. Qc2 c6 10. O-O Nf8 11. Bxf6 Bxf6 12. b4 Bg4 13. Nd2 Rc8 14. Bf5 Bxf5 15. Qxf5 Qd7 16. Qxd7 Nxd7 { It seems to be drawn, but Korchnoi has just started. } 17. a4 Be7 18. Rfb1 Nf6 19. a5 a6 20. Na4 Bf8 21. Nc5 Re7 { The attack on the queenside ended. Gaining territory becomes the aim. } 22. Kf1 Ne8 23. Ke2 Nd6 24. Kd3 Rce8 25. Re1 g6 26. Re2 f6 27. Rae1 Bh6 28. Ndb3 Bf8 29. Nd2 Bh6 30. h3 Kf7 31. g4 Bf8 32. f3 Rd8 33. Ndb3 Nb5 34. Rf1 Bh6 35. f4 Bf8 36. Nd2 Nd6 37. Rfe1 h6 38. Rf1 Rb8 39. Ra1 Rbe8 40. Rae1 Rb8 $6 { Black allows an advance in the centre. } 41. e4 $1 dxe4+ 42. Ndxe4 Nb5 43. Nc3 Rxe2 44. Rxe2 Bxc5 45. bxc5 Rd8 46. Nxb5 axb5 47. f5 $1 { The fight for terrain continues in the rook ending. } 47... gxf5 48. gxf5 Rg8 $1 { Korchnoi and his seconds have prepared a surprise. } 49. Kc3 $1 ( { The obvious } 49. d5 Rd8 50. d6 Re8 { draws quickly. } ) 49... Re8 ( { Korchnoi analyses } 49... Rg3+ $5 50. Kb4 Rxh3 51. a6 $1 bxa6 52. d5 $1 Rh4+ $1 53. Ka5 cxd5 54. Rc2 d4 $1 55. c6 d3 56. c7 dxc2 57. c8=Q Rc4 58. Qe6+ Kf8 59. Qxf6+ Ke8 60. Qe6+ Kd8 61. Qd6+ Kc8 62. Qxa6+ Kd8 { Black narrowly escapes. } ) 50. Rd2 Re4 $1 51. Kb4 Ke8 52. a6 $1 bxa6 53. Ka5 Kd7 54. Kb6 $1 b4 55. d5 cxd5 56. Rxd5+ Kc8 57. Rd3 $1 { Korchnoi investigates this position in his book about rook endings. } 57... a5 $2 { Karpov makes the decisive error. } ( { Correct is } 57... Rc4 $1 58. c6 Rc3 59. Rd6 $5 b3 60. Rxf6 Kd8 { (Korchnoi). } ) 58. Rg3 b3 $6 ( { The variation } 58... Rc4 59. c6 Kd8 60. c7+ Ke7 $1 61. Kb7 Kd6 $1 { draws, according to Timman. However, } 62. c8=Q Rxc8 63. Kxc8 { wins. See for instance } 63... Kc5 64. Kc7 a4 65. Rg6 $1 a3 66. Rxf6 b3 67. Rc6+ Kd5 68. f6 a2 69. Rd6+ $1 Ke5 70. f7 a1=Q 71. f8=Q Qa7+ 72. Kc6 Qa6+ 73. Kd7 Qb7+ 74. Ke8 Qc8+ 75. Rd8 ) 59. Kc6 $1 { Karpov has missed this move. } 59... Kb8 ( 59... Kd8 60. Rxb3 a4 61. Rb8+ Ke7 62. Rb7+ Kd8 63. Kd6 Rd4+ 64. Ke6 $18 { (Korchnoi). } ) 60. Rxb3+ Ka7 61. Rb7+ Ka6 62. Rb6+ Ka7 63. Kb5 a4 64. Rxf6 Rf4 65. Rxh6 a3 66. Ra6+ Kb8 67. Rxa3 Rxf5 68. Rg3 Rf6 69. Rg8+ Kc7 70. Rg7+ Kc8 71. Rh7 { Korchnoi won the best endgame of his career. The score had become 5-5.
Was Tolya exhausted? The answer came in the next game. } 1-0
[Event "Wch29"]
[Site "Baguio City"]
[Date "1978.??.??"]
[Round "32"]
[White "Karpov, Anatoly"]
[Black "Korchnoi, Viktor"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2665"]
[ECO "A43"]
[EventDate "1978.??.??"]
[PlyCount "82"]
[WhiteElo "2725"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c5 { Black plays a little known tactical opening. } 7. d5 Na6 8. Bf4 Nc7 { White prepares e5 and Black ..b5. } 9. a4 b6 10. Re1 Bb7 11. Bc4 Nh5 $5 12. Bg5 Nf6 $6 ( { Theory will become } 12... h6 13. Bh4 g5 14. Nd2 Nf4 15. Bg3 { (Holzapfel-Borik, Bundesliga 1987). } ) 13. Qd3 a6 14. Rad1 Rb8 $6 ( { Square e5 is controlled by } 14... Ng4 $1 15. h3 Ne5 16. Nxe5 Bxe5 ) 15. h3 $6 { Karpov hesitates. } ( { Control over the central area gives } 15. e5 $1 dxe5 16. Nxe5 Qd6 17. Nc6 Bxc6 18. dxc6 Qxc6 19. Rxe7 ) 15... Nd7 16. Qe3 Ba8 17. Bh6 b5 $1 18. Bxg7 Kxg7 19. Bf1 Nf6 20. axb5 axb5 21. Ne2 Bb7 22. Ng3 Ra8 23. c3 Ra4 24. Bd3 Qa8 $2 ( { Black properly defends in } 24... Qd7 $1 25. e5 Ng8 $1 26. e6 fxe6 27. dxe6 Qe8 ) 25. e5 $1 dxe5 ( { The pointe is } 25... Nfxd5 $2 26. Nh5+ $1 gxh5 27. Qg5+ Kh8 28. Qf5 { (Karpov). } ) 26. Qxe5 Nxd5 27. Bxb5 Ra7 28. Nh4 Bc8 $6 ( { Full counter-play gives } 28... Qb8 $1 29. Qg5 ( 29. c4 Qxe5 30. Rxe5 { (Filip) } 30... Ra5 ) 29... Kg8 $1 30. c4 Qf4 31. Qxf4 Nxf4 32. Rxe7 Rb8 $1 ) 29. Be2 $5 Be6 30. c4 Nb4 31. Qxc5 Qb8 32. Bf1 { Black has a last chance. } 32... Rc8 $2 ( { Correct is } 32... h6 $1 { (Filip) } 33. Nf3 Rc8 34. Qe5 Nc6 35. Qxb8 Rxb8 ) 33. Qg5 Kh8 34. Rd2 Nc6 35. Qh6 Rg8 36. Nf3 Qf8 37. Qe3 Kg7 38. Ng5 Bd7 39. b4 Qa8 40. b5 Na5 41. b6 Rb7 { Karpov had won with 6-5. The match of hatred had ended. } 1-0
[Event "Wch30"]
[Site "Merano"]
[Date "1981.??.??"]
[Round "1"]
[White "Korchnoi, Viktor"]
[Black "Karpov, Anatoly"]
[Result "0-1"]
[Annotator "JvR"]
[BlackElo "2700"]
[ECO "D58"]
[EventDate "1981.??.??"]
[PlyCount "86"]
[WhiteElo "2695"]

{ Korchnoi played the candidates' matches in 1980. He defeated Petrosian first.
Polugaevsky gave great resistance in the semifinal. Finally, Huebner could not
bear the tension of the final.  Before Korchnoi played against the world
champion, his son Igor was sent to Siberia. again the tone was set, when the
match began. } 1. c4 e6 2. Nc3 d5 3. d4 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. Rc1 Bb7 9. Be2 $5 Nbd7 10. cxd5 exd5 11. O-O c5 12. dxc5 bxc5 13. Qc2 Rc8 14. Rfd1 Qb6 15. Qb1 $6 ( { Better is } 15. b3 ) 15... Rfd8 16. Rc2 Qe6 17. Bg3 $6 ( { Equality is kept by } 17. Rcd2 $1 Ne4 $1 18. Nxe4 dxe4 19. Bxe7 exf3 { (Botvinnik), and now } 20. Bb5 $1 Be4 21. Qc1 Qxe7 22. Rxd7 Rxd7 23. Rxd7 Qe6 24. Qc4 ) 17... Nh5 18. Rcd2 Nxg3 19. hxg3 Nf6 20. Qc2 g6 21. Qa4 a6 22. Bd3 $6 Kg7 23. Bb1 $6 Qb6 24. a3 $2 { Passive moves are answered by punishment. } 24... d4 $1 25. Ne2 ( { The point is } 25. exd4 Bc6 $1 26. Qc4 Bxf3 27. gxf3 cxd4 { (Botvinnik). } ) 25... dxe3 26. fxe3 c4 27. Ned4 Qc7 28. Nh4 Qe5 29. Kh1 Kg8 30. Ndf3 Qxg3 31. Rxd8+ Bxd8 32. Qb4 Be4 33. Bxe4 Nxe4 34. Rd4 Nf2+ 35. Kg1 Nd3 36. Qb7 Rb8 37. Qd7 Bc7 { Black threatens 38...Qf2+. } 38. Kh1 Rxb2 39. Rxd3 cxd3 40. Qxd3 Qd6 41. Qe4 Qd1+ 42. Ng1 Qd6 43. Nhf3 Rb5 0-1
[Event "Wch30"]
[Site "Merano"]
[Date "1981.??.??"]
[Round "4"]
[White "Karpov, Anatoly"]
[Black "Korchnoi, Viktor"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2695"]
[ECO "C42"]
[EventDate "1981.??.??"]
[PlyCount "105"]
[WhiteElo "2700"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bf5 9. Bb5 Bf6 $1 10. Nbd2 O-O 11. Nf1 Ne7 12. c3 Ng6 13. Bd3 Nd6 14. Bxf5 Nxf5 15. Qb3 b6 16. Qb5 a6 17. Qd3 Qd7 18. Ng3 Nxg3 19. hxg3 a5 20. Bg5 Bxg5 21. Nxg5 Rfe8 22. b3 Rad8 23. Nf3 f6 24. Nd2 Kf7 25. Nf1 h5 $6 { Weakens the kingside. } 26. Rxe8 Rxe8 27. Qf3 Rh8 28. Ne3 Ne7 29. Re1 g6 30. Qf4 Kg7 31. g4 g5 32. Qf3 hxg4 33. Nxg4 Qd6 34. g3 c6 35. c4 f5 $6 { Lifts the control over e5. } 36. Qe3 $1 Ng6 $1 37. c5 Qd8 $2 { Korchnoi defends poorly. } ( { Correct is } 37... bxc5 $1 38. dxc5 Qd8 39. Qd4+ Kf7 40. Ne5+ Nxe5 41. Qxe5 { (Kavalek), and now } 41... Kg6 $1 42. Qe6+ Qf6 43. Qd7 Rd8 $1 ) 38. Ne5 bxc5 39. Nxc6 Qf6 40. Qe6 cxd4 41. Qxd5 d3 42. Qd7+ Qf7 43. Ne7 Kh7 44. Kg2 $1 { White prepares the next move. } 44... Re8 45. Rh1+ Nh4+ 46. gxh4 Qxe7 47. Qxf5+ Kg7 48. hxg5 Qb7+ 49. f3 Re2+ 50. Kf1 Kg8 51. Qxd3 Re6 52. Qd8+ Kg7 53. Qd4+ 1-0
[Event "Wch30"]
[Site "Merano"]
[Date "1981.??.??"]
[Round "9"]
[White "Korchnoi, Viktor"]
[Black "Karpov, Anatoly"]
[Result "0-1"]
[Annotator "JvR"]
[BlackElo "2700"]
[ECO "D53"]
[EventDate "1981.??.??"]
[PlyCount "86"]
[WhiteElo "2695"]

1. c4 e6 2. Nc3 d5 3. d4 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. Rc1 dxc4 8. e3 c5 9. Bxc4 cxd4 10. exd4 Nc6 11. O-O Nh5 12. Bxe7 Nxe7 13. Bb3 Nf6 14. Ne5 Bd7 15. Qe2 Rc8 16. Ne4 $6 { Exchanges support Black. } 16... Nxe4 17. Qxe4 Bc6 $1 18. Nxc6 Rxc6 19. Rc3 $6 ( { Equality keeps } 19. Rxc6 Nxc6 ( { or } 19... bxc6 20. Rc1 ) 20. d5 ) 19... Qd6 20. g3 Rd8 21. Rd1 Rb6 $1 22. Qe1 $6 { The queen is deactivated. } 22... Qd7 23. Rcd3 Rd6 24. Qe4 Qc6 $1 25. Qf4 Nd5 26. Qd2 Qb6 27. Bxd5 $2 ( { Correct is } 27. a3 ) 27... Rxd5 { Black's heavy pieces gain control. } 28. Rb3 $6 Qc6 29. Qc3 Qd7 30. f4 $5 { White has to prevent ..e5. } 30... b6 $1 31. Rb4 b5 32. a4 bxa4 33. Qa3 a5 $1 34. Rxa4 Qb5 $1 { White pieces are standing off-side. Black takes advantage. } 35. Rd2 e5 $1 36. fxe5 Rxe5 37. Qa1 Qe8 $3 { Black threatens ..Re1+. Korcnoi is helpless. } 38. dxe5 Rxd2 39. Rxa5 Qc6 40. Ra8+ Kh7 41. Qb1+ g6 42. Qf1 Qc5+ 43. Kh1 Qd5+ { Karpov had taken a lead of 4-1 in won games. } 0-1
[Event "Wch30"]
[Site "Merano"]
[Date "1981.??.??"]
[Round "13"]
[White "Korchnoi, Viktor"]
[Black "Karpov, Anatoly"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2700"]
[ECO "D31"]
[EventDate "1981.??.??"]
[PlyCount "82"]
[WhiteElo "2695"]

1. c4 e6 2. Nc3 d5 3. d4 Be7 4. cxd5 exd5 5. Bf4 c6 6. e3 Bf5 7. g4 Be6 8. h3 Nf6 9. Nf3 O-O 10. Bd3 c5 11. Kf1 Nc6 12. Kg2 Rc8 ( 12... cxd4 { was played in Botvinnik-Petrosian (14), Moscow 1964. } ) 13. Rc1 Re8 14. dxc5 Bxc5 15. Nb5 Bf8 16. Nfd4 Nxd4 $6 ( { Commentators prefer } 16... Qb6 17. Nxe6 fxe6 18. g5 Ne4 ) 17. Rxc8 Qxc8 18. exd4 Qd7 19. Nc7 Rc8 20. Nxe6 fxe6 21. Re1 a6 $2 ( { Better is } 21... Bb4 22. Re2 Bd6 ) 22. g5 Ne4 $6 23. Qg4 $1 ( { Less promising is } 23. Bxe4 dxe4 24. Rxe4 Qd5 { (Unzicker). } ) 23... Bb4 24. Re2 Rf8 25. f3 Qf7 $1 ( { Karpov avoids the devastating } 25... Nd6 $2 26. a3 Ba5 27. Bxd6 Qxd6 28. Qh5 $1 g6 29. Bxg6 $1 ) 26. Be5 Nd2 27. a3 Nxf3 28. g6 $2 ( { The defence line is crushed by } 28. Bg3 $1 Nh4+ $1 29. Kh2 Nf3+ 30. Kh1 $1 Bd2 31. Bd6 Rc8 32. Bc5 b6 33. g6 $1 hxg6 34. Bxg6 Qf6 35. Rxe6 ) 28... hxg6 29. Bg3 { Karpov seems to be lost, but ... } 29... Be7 $2 ( { He misses the wonderful escape } 29... Nh4+ $1 30. Kh2 Nf3+ 31. Kh1 Nh4 $3 32. Qxh4 ( 32. Rf2 Nf5 ) 32... Qf3+ 33. Rg2 Qxd3 34. axb4 Rf1+ 35. Kh2 Qd1 $11 { (Tal). } ) 30. Rf2 $1 Ne1+ 31. Kh2 Qxf2+ 32. Bxf2 Nxd3 33. Qxe6+ Rf7 34. Bg3 Nxb2 35. Qxd5 Bf6 36. Bd6 g5 37. Qb3 Bxd4 38. Qe6 g6 39. Qe8+ Kg7 40. Be5+ Bxe5+ 41. Qxe5+ Kh7 { Korchnoi achieved an entertaining win. The score became 4-2. 
 Karpov scored the decisive victory in game eighteen. He won with 6-2. Ten
draws didn't count. The match was called a massacre. } 1-0
[Event "2.f"]
[Site "London"]
[Date "1983.??.??"]
[Round "1"]
[White "Kasparov, Gary"]
[Black "Korchnoi, Viktor"]
[Result "0-1"]
[Annotator "JvR"]
[BlackElo "2610"]
[ECO "E12"]
[EventDate "1983.??.??"]
[PlyCount "104"]
[WhiteElo "2690"]

{ Korchnoi easily defeated Portisch in the quarterfinal two years later. He met
the new great talent Kasparov in the semifinal of the candidates' matches
after many organisational difficulties. } 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. a3 d5 6. cxd5 Nxd5 7. e3 g6 8. Bb5+ c6 9. Bd3 Bg7 10. e4 $1 Nxc3 11. bxc3 c5 $1 ( { He improves on } 11... O-O { (Ftacnik-Adorjan, Banja Luka 1983). } ) 12. Bg5 $5 Qd6 13. e5 $5 Qd7 14. dxc5 $6 ( { Wiser is } 14. O-O ) 14... O-O $1 15. cxb6 axb6 16. O-O Qc7 { Weak pawns become targets. } 17. Bb5 Bxe5 18. Bh6 $5 Bg7 ( { Black avoids the wild } 18... Rd8 $1 19. Nxe5 Rxd1 { (Kasparov) } 20. Rfxd1 ) 19. Bxg7 Kxg7 20. Qd4+ Kg8 { White can start an attack on the kingside. } 21. Ng5 $2 ( { Right is } 21. Ne5 Rd8 22. Qh4 $1 Rd5 23. Ng4 Rxb5 24. Rad1 Rd5 $1 25. c4 Rd6 26. Nf6+ Kf8 { (Kasparov), and now } 27. Qh6+ Ke7 28. Qg5 Kf8 29. Qh6+ { with perpetual check. } ) 21... h6 22. Ne4 Bxe4 23. Qxe4 Na6 $1 24. Qe3 $6 Qc5 $1 25. Qxc5 Nxc5 { The knight has reached a strong square. Black has the better ending. } 26. Rfb1 Rfd8 27. Bf1 Rd6 28. Rb4 Kf8 29. a4 $6 ( { The exchanges } 29. Rab1 Rxa3 30. Rxb6 Rxb6 31. Rxb6 Rxc3 { might help White (Kasparov). } ) 29... Ra5 30. g3 Ke7 31. Kg2 f5 32. Bb5 Rd2 $6 ( { Better is } 32... e5 $1 ) 33. Rd4 $2 ( 33. Bc4 $1 Nd7 34. Re1 Rd6 { restricts Black. } ) 33... Rxd4 34. cxd4 Nxa4 35. Rxa4 Rxb5 36. Ra7+ Kd6 37. Rh7 h5 38. Rg7 Rd5 39. Rxg6 b5 40. Kf3 b4 41. Ke3 b3 42. Kd2 Rxd4+ 43. Kc3 b2 44. Kxb2 Rd2+ 45. Kc3 Rxf2 46. h4 f4 $1 { A powerful move ends the game. } 47. Rg5 Rf3+ 48. Kd4 Rxg3 49. Rxh5 Re3 50. Rh6 Ke7 51. h5 e5+ 52. Kd5 f3 { The experienced player had a good start. Four draws followed. } 0-1
[Event "2.f"]
[Site "London"]
[Date "1983.??.??"]
[Round "6"]
[White "Korchnoi, Viktor"]
[Black "Kasparov, Gary"]
[Result "0-1"]
[Annotator "JvR"]
[BlackElo "2690"]
[ECO "D30"]
[EventDate "1983.??.??"]
[PlyCount "154"]
[WhiteElo "2610"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nc6 6. Bg2 Nf6 7. O-O Be7 8. Be3 c4 9. Ne5 O-O 10. b3 cxb3 11. Qxb3 Qb6 12. Rc1 Qxb3 13. axb3 Nb4 14. Na3 $5 { White exerts slight pressure on the queenside. } 14... a6 15. Bd2 Rb8 16. Bxb4 Bxb4 17. Nd3 Bd6 18. Nc2 Bg4 19. Kf1 Bf5 20. Nc5 Rfc8 21. Ne3 Be6 22. b4 Kf8 23. Rc2 Ke7 24. Ke1 h5 25. Rb2 Rc7 26. Nd3 Ra8 $1 { Active consolidation
prepares a flexible response. Korchnoi accepts the challenge. } 27. b5 $5 a5 28. b6 Rc6 29. Rb5 a4 30. Nxd5+ $5 Nxd5 31. Bxd5 Bxd5 32. Rxd5 Rxb6 33. Rxh5 Rb3 34. Kd2 b5 { Black has positional compensation for the pawn. } 35. h4 $2 { White chooses the wrong strategy. The advance on the kingside goes too slow. } ( { Action in the centre starts with } 35. e4 $1 ) 35... Rc8 36. g4 $6 ( 36. Rg5 $1 g6 37. e4 $1 { changes the strategy. } ) 36... a3 37. f4 Rcc3 38. Rd5 Ke6 39. Rh5 b4 40. Ra5 Rxd3+ 41. exd3 Bxf4+ 42. Ke2 Rc3 $1 ( { Korchnoi expected } 42... Rb2+ 43. Kf3 Bd2 44. Ke4 { and White will deliver perpetual check. } ) 43. g5 $6 ( { White can draw by } 43. Kf3 $1 Bd6 44. Ke4 b3 45. R5xa3 Bxa3 46. Rxa3 { (Kasparov). } ) 43... Bc1 44. h5 b3 $1 45. R5xa3 Bxa3 46. Rxa3 { Black has tactical chances in the rook ending. } 46... b2 $1 47. Ra6+ Kf5 48. Rb6 Rc2+ 49. Ke3 Kxg5 50. d5 Kxh5 51. Kd4 ( 51. d6 $4 Rc6 $1 ) 51... g5 52. Rb8 g4 53. d6 Rc6 54. Ke5 Rc5+ 55. Kf6 g3 56. Rxb2 Rd5 57. Kxf7 Rxd6 58. Rd2 Kg4 59. d4 Kf5 60. Ke7 Rd5 ( { Great problems are set by } 60... Rg6 $1 61. Rg2 $1 Ke4 62. Kf7 Rg4 63. Ke6 Kf3 { but } 64. Rxg3+ $1 Rxg3 65. d5 Ke4 66. d6 Rg6+ 67. Ke7 Ke5 68. d7 Rg7+ 69. Ke8 Ke6 70. d8=N+ { achieves the draw. } ) 61. Rd3 Kf4 62. Ke6 Rg5 63. d5 $2 { The obvious move causes defeat. } ( { Correct is } 63. Rd1 $1 g2 64. Rg1 Ke4 65. d5 Rg6+ 66. Kf7 $11 ) 63... Rg6+ $1 ( { Not } 63... g2 $2 64. Rd4+ ) 64. Ke7 g2 65. Rd1 Ke5 66. d6 Re6+ $1 67. Kd7 Rxd6+ 68. Rxd6 g1=Q 69. Re6+ Kf5 70. Rd6 Qa7+ 71. Kd8 Ke5 72. Rg6 Qa5+ 73. Kd7 Qa4+ 74. Ke7 Qh4+ 75. Kf8 Qd8+ 76. Kf7 Kf5 77. Rh6 Qd7+ 0-1
[Event "2.f"]
[Site "London"]
[Date "1983.??.??"]
[Round "7"]
[White "Kasparov, Gary"]
[Black "Korchnoi, Viktor"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2610"]
[ECO "E04"]
[EventDate "1983.??.??"]
[PlyCount "91"]
[WhiteElo "2690"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Bd7 6. Qc2 c5 7. O-O Bc6 8. Qxc4 Nbd7 9. Bg5 Rc8 10. Bxf6 Nxf6 11. dxc5 Bxf3 12. Bxf3 Bxc5 13. Qb5+ Qd7 14. Nc3 Qxb5 15. Nxb5 { White pressures on the queenside. } 15... Ke7 ( { A fine alternative brings } 15... O-O $1 16. Rac1 Nd5 17. Rfd1 a6 18. Nc3 Nxc3 19. Rxc3 b6 20. Bb7 Rcd8 21. Rxd8 Rxd8 22. Bxa6 Rd2 23. Rb3 { White has won a pawn, but Black will survive. } ) 16. b4 $3 Bxb4 17. Nxa7 Rc7 $2 ( { Correct is } 17... Ra8 18. Nb5 Ra5 19. a4 Rb8 { (Korchnoi). } ) 18. Rfc1 Rd7 $6 ( { The last chance gives } 18... Rxc1+ 19. Rxc1 Ra8 20. Rc7+ Kf8 21. Rxb7 Bc5 22. Nc6 Rxa2 23. Ne5 Kg8 24. Nxf7 h6 ) 19. Rab1 Bd2 20. Rc2 Rhd8 ( { Black has to lose a pawn due to } 20... Rb8 21. Nc6+ $1 ) 21. Bxb7 Kf8 22. Nc6 Rc7 23. Rbb2 Rd6 24. a4 Be1 25. Rb1 Nd5 26. Ba8 Rc8 27. Bb7 Rc7 28. Rc4 Ne7 29. Ne5 Ba5 30. Rb5 Ng6 31. Nc6 Rd1+ 32. Kg2 Be1 33. a5 Ne7 34. a6 Nxc6 35. Rxc6 Rxc6 36. Bxc6 Ra1 37. Rb8+ Ke7 38. Rb7+ Kd6 39. Bb5 Bc3 40. Rxf7 Bf6 41. Rd7+ Kc5 42. Bd3 h6 43. Rb7 Ra3 44. a7 Kd5 45. f3 Kd6 46. Rb6+ { Kasparov had taken
the lead in a grand manner. He had defeated Korchnoi in his speciality of
solid positional play. } ( 46. Rb6+ Kc7 47. Ra6 Rxa6 48. Bxa6 { wins elegantly. } ) 1-0
[Event "2.f"]
[Site "London"]
[Date "1983.??.??"]
[Round "11"]
[White "Kasparov, Gary"]
[Black "Korchnoi, Viktor"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2610"]
[ECO "A60"]
[EventDate "1983.??.??"]
[PlyCount "63"]
[WhiteElo "2690"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 b5 $5 { Korchnoi needs to win. } 6. Bg2 d6 7. b4 $1 Na6 8. bxc5 Nxc5 9. Nf3 g6 10. O-O Bg7 11. Nd4 O-O ( 11... Bb7 $1 { is more urgent. } ) 12. Nc3 $1 a6 $2 ( { Sufficient counter-play gives } 12... b4 $1 13. Nc6 Qd7 14. Nb5 $1 Nfe4 $1 { (Kasparov). } ) 13. Nc6 $1 Qc7 14. Be3 Bb7 15. Bd4 Rfe8 16. a4 $1 { White has taken the initiative on the queenside. } 16... bxa4 17. Bxc5 dxc5 18. Qxa4 Nd7 19. Qb3 { A draw suffices for White. } 19... Bxc6 20. dxc6 Nb6 21. Rab1 Rab8 22. Qa3 c4 23. Rfc1 $1 Bxc3 24. Qxc3 Rxe2 25. Qd4 $1 { White threatens to attack the weak pawns on the queenside. } 25... a5 $6 ( { The crucial line is } 25... Re5 $1 26. Re1 $1 Rb5 27. Rbd1 $1 { (Kasparov). Now White attacks on the kingside. The complications of } 27... a5 28. g4 $1 h5 29. Qf6 Rf8 30. Re7 Qc8 31. h4 c3 32. gxh5 c2 33. Rde1 { favour White. } ) 26. Rb5 $1 a4 27. Bf3 ( { Or } 27. Rcb1 $1 ) 27... Ree8 28. Qc5 Qe7 $6 29. c7 Qxc5 30. Rxc5 Rbc8 31. Bb7 Nd7 32. R5xc4 { Kasparov had won the match
with 7-4 (+4, =6, -1). The loss in the first game and final score are
identical to another historic match: Karpov-Spassky. } 1-0
[Event "Wch31-KK1"]
[Site "Moscow"]
[Date "1984.??.??"]
[Round "6"]
[White "Kasparov, Gary"]
[Black "Karpov, Anatoly"]
[Result "0-1"]
[Annotator "JvR"]
[BlackElo "2705"]
[ECO "E15"]
[EventDate "1984.??.??"]
[PlyCount "140"]
[WhiteElo "2715"]

{ Gary easily defeated Smyslov in the final. The next year he encountered
Karpov in their first match.  The winner needed six wins for the championship.
Karpov scored his first point in game three. } 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 O-O 8. O-O d5 9. Ne5 c6 10. Bc3 Nfd7 11. Nxd7 Nxd7 12. Nd2 Rc8 13. e4 b5 14. Re1 dxc4 15. bxc4 Nb6 $6 16. cxb5 $6 ( { A plus gains } 16. c5 $1 ) 16... cxb5 17. Rc1 Ba3 18. Rc2 Na4 19. Ba1 Rxc2 20. Qxc2 Qa5 $6 { Black has amassed his troops on the a-file. } 21. Qd1 $1 Rc8 22. Nb3 Qb4 23. d5 $1 exd5 $2 ( { Correct is } 23... Nb2 $1 24. Bxb2 Bxb2 25. dxe6 fxe6 ) 24. exd5 Nc3 25. Qd4 Qxd4 26. Nxd4 Nxa2 27. Nc6 $2 { Kasparov misses a combination. } ( { White wins by } 27. Nf5 $1 { e.g. } 27... Rc1 28. Rxc1 Bxc1 29. d6 Bg5 30. h4 Bd8 31. Ne7+ Kf8 32. Nc6 Ke8 33. Bh3 $1 { (Yusupov). } ) 27... Bc5 28. Bh3 Ra8 29. Bd4 Bxd4 30. Nxd4 Kf8 31. d6 Nc3 32. Nc6 Bb7 33. Bg2 Re8 34. Ne5 f6 35. d7 Rd8 36. Bxb7 fxe5 37. Bc6 Ke7 38. Bxb5 $1 Nxb5 39. Rxe5+ Kxd7 40. Rxb5 Kc6 { Black has an extra pawn in the rook ending. } 41. Rh5 $6 ( { More resistance offers } 41. Re5 $1 Ra8 42. Re6+ Kc5 43. Re7 a5 44. Rxg7 { (Yusupov) } 44... a4 45. Rc7+ Kb4 46. Rb7+ Ka5 $1 47. Rxh7 a3 48. Rc7 a2 49. Rc1 Kb4 50. Ra1 ) 41... h6 42. Re5 Ra8 43. Ra5 ( { Interesting is } 43. Re6+ Kc5 44. Rg6 a5 45. Rxg7 a4 46. Rc7+ Kb4 47. Rb7+ Ka5 $1 { (Yusupov). } ) 43... Kb6 44. Ra2 $1 { Square a1 remains open for the king. } 44... a5 45. Kf1 a4 46. Ke2 Kc5 47. Kd2 a3 48. Kc1 Kd4 49. f4 $1 { The f-pawn needs protection. } 49... Ke4 50. Kb1 Rb8+ 51. Ka1 Rb2 $1 52. Rxa3 $1 Rxh2 53. Kb1 Rd2 $1 54. Ra6 ( { Or } 54. Ra7 g5 55. Kc1 Rd5 56. Re7+ Kf5 ) 54... Kf5 55. Ra7 g5 56. Ra6 g4 $3 { Subtle play overcomes an excellent defence. } 57. Rxh6 Rg2 58. Rh5+ Ke4 59. f5 Rf2 60. Kc1 Kf3 61. Kd1 ( { The stubborn } 61. f6 $1 Kxg3 62. Rh6 Kg2 63. Kd1 g3 64. Rg6 $1 Rf5 65. Ke2 Re5+ 66. Kd3 Kf3 67. Kd4 Rh5 $3 68. f7 Rf5 69. Rg7 g2 { leads to mutual zugzwang. } 70. Kd3 Rf4 { and Black wins. } ) 61... Kxg3 62. Ke1 Kg2 63. Rg5 g3 { White has to move. } 64. Rh5 ( { A pawn costs } 64. Kd1 Kh3 65. Ke1 Kh4 ) 64... Rf4 65. Ke2 Re4+ 66. Kd3 Kf3 67. Rh1 g2 68. Rh3+ Kg4 69. Rh8 Rf4 70. Ke2 Rxf5 { Karpov also won the seventh game and led by 3-0. } 0-1
[Event "Wch31-KK1"]
[Site "Moscow"]
[Date "1984.??.??"]
[Round "9"]
[White "Karpov, Anatoly"]
[Black "Kasparov, Gary"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2715"]
[ECO "D34"]
[EventDate "1984.??.??"]
[PlyCount "139"]
[WhiteElo "2705"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nf6 6. Bg2 Be7 7. O-O O-O 8. Nc3 Nc6 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8 12. Qb3 Na5 13. Qc2 Bg4 14. Nf5 Rc8 15. Bd4 Bc5 16. Bxc5 Rxc5 17. Ne3 Be6 18. Rad1 Qc8 19. Qa4 Rd8 20. Rd3 a6 21. Rfd1 Nc4 22. Nxc4 Rxc4 23. Qa5 Rc5 24. Qb6 Rd7 25. Rd4 Qc7 26. Qxc7 Rdxc7 { The pressure on the isolated pawn continues. } 27. h3 h5 28. a3 g6 29. e3 Kg7 30. Kh2 Rc4 31. Bf3 b5 32. Kg2 R7c5 33. Rxc4 Rxc4 34. Rd4 Kf8 35. Be2 Rxd4 36. exd4 Ke7 37. Na2 Bc8 38. Nb4 Kd6 39. f3 Ng8 40. h4 Nh6 41. Kf2 Nf5 42. Nc2 f6 43. Bd3 g5 44. Bxf5 Bxf5 { White has a plus because the knight is stronger than the bishop. } 45. Ne3 Bb1 46. b4 gxh4 $6 ( 46... Bg6 { prepares the pawn exchange. } ) 47. Ng2 $3 { A red headed Gary sits behind the board. } 47... hxg3+ 48. Kxg3 Ke6 $2 ( { Correct is } 48... Bg6 49. Nf4 Bf7 $1 50. Kh4 Ke7 51. Nxh5 Ke6 52. Nf4+ Kf5 53. Nd3 Be8 $1 54. Kg3 Bd7 55. Nc5 Bc8 { Black has a bad position but he seems to survive. } ) 49. Nf4+ Kf5 50. Nxh5 Ke6 51. Nf4+ Kd6 52. Kg4 Bc2 53. Kh5 Bd1 54. Kg6 $1 Ke7 55. Nxd5+ $2 { This move is
an error although the pawn is captured with a check. Pawn d5 should not be
taken at once. } ( { Restriction should continue with } 55. Nh5 $3 Bc2+ 56. Kg7 Bd1 ( { the pointe is } 56... Ke6 57. Ng3 { and 58.f4 } ) 57. Nxf6 Bxf3 58. Kg6 Ke6 59. Ne8 Kd7 60. Ng7 Ke7 61. Kf5 Kd6 62. Kf6 Bg2 63. Nf5+ Kd7 64. Ke5 { The preparation has been completed. White will gain pawn d5 and win eventually. } ) 55... Ke6 $6 ( { Better is } 55... Kd6 56. Nxf6 Bxf3 { White wins according to
Geller and Mikhalchiskin. However, pawn d4 is weak, due to the missing pawn
d5! } ) 56. Nc7+ Kd7 $2 { A second pawn will be lost. } ( { Right is } 56... Kd6 57. Nxa6 Bxf3 58. Kxf6 Kd5 59. Nc7+ Kxd4 60. Nxb5+ Kc4 61. Nd6+ Kb3 62. b5 Kxa3 $11 ) 57. Nxa6 Bxf3 58. Kxf6 Kd6 59. Kf5 Kd5 60. Kf4 $1 { The d-pawn is saved. } 60... Bh1 61. Ke3 Kc4 62. Nc5 Bc6 63. Nd3 Bg2 64. Ne5+ Kc3 65. Ng6 Kc4 66. Ne7 Bb7 67. Nf5 { The restriction of the black king has gone completely. } 67... Bg2 $4 ( 67... Kd5 $1 68. Kd3 Ke6 $1 69. Ng3 Bg2 { and the game will be hard to win for White, despite the extra pawns. } ) 68. Nd6+ Kb3 69. Nxb5 Ka4 70. Nd6 { This endgame hass been published without criticism
mostly.  Karpov led by 4-0. It looked like a walkover. Then Kasparov avoided
the cat-and-mouse-play around the isolated pawn in the Tarrasch. A long series
of draws followed. } 1-0
[Event "Wch31-KK1"]
[Site "Moscow"]
[Date "1984.??.??"]
[Round "27"]
[White "Karpov, Anatoly"]
[Black "Kasparov, Gary"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2715"]
[ECO "D55"]
[EventDate "1984.??.??"]
[PlyCount "117"]
[WhiteElo "2705"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. e3 O-O 8. Qc2 c5 9. dxc5 dxc4 10. Bxc4 Qa5 11. O-O Bxc3 12. Qxc3 Qxc3 13. bxc3 Nd7 14. c6 bxc6 15. Rab1 Nb6 16. Be2 c5 17. Rfc1 $1 { It looks like a dead draw, but Karpov prepares an attack. } 17... Bb7 18. Kf1 Bd5 $5 19. Rb5 $1 { Commentators criticise previous moves, but black's real
mistake still has to happen. } 19... Nd7 $2 ( { Correct is } 19... Rac8 $1 20. Ra5 Rc7 21. c4 Bxf3 $1 22. Bxf3 Rd8 { Black has a simple defence. } ) 20. Ra5 Rfb8 21. c4 Bc6 22. Ne1 $1 Rb4 23. Bd1 $1 Rb7 24. f3 Rd8 ( { The tactics of } 24... Rc7 25. Nd3 Bb7 26. Ba4 Nb6 27. Rxc5 Rxc5 28. Nxc5 Bxf3 $1 29. gxf3 Rc8 30. Nxe6 $1 Nxa4 31. Nd4 { also leads to the loss of a pawn by Black. } ) 25. Nd3 $1 g5 26. Bb3 Kf8 27. Nxc5 Nxc5 28. Rxc5 Rd6 29. Ke2 Ke7 30. Rd1 Rxd1 31. Kxd1 Kd6 32. Ra5 f5 33. Ke2 h5 $5 { Kasparov will be lost anyway, if he does not counterattack. } 34. e4 $1 fxe4 35. fxe4 Bxe4 36. Rxg5 Bf5 37. Ke3 h4 38. Kd4 e5+ 39. Kc3 Bb1 40. a3 Re7 41. Rg4 h3 42. g3 Re8 43. Rg7 $1 Rf8 44. Rxa7 Rf2 45. Kb4 Rxh2 46. c5+ Kc6 47. Ba4+ Kd5 48. Rd7+ Ke4 49. c6 Rb2+ 50. Ka5 Rb8 51. c7 Rc8 52. Kb6 Ke3 53. Bc6 h2 54. g4 Rh8 55. Rd1 $1 Ba2 56. Re1+ Kf4 57. Re4+ Kg3 58. Rxe5 Kxg4 59. Re2 { Karpov won a fine endgame and increased the lead to 5-0. } 1-0
[Event "Wch31-KK1"]
[Site "Moscow"]
[Date "1984.??.??"]
[Round "31"]
[White "Karpov, Anatoly"]
[Black "Kasparov, Gary"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[BlackElo "2715"]
[ECO "D58"]
[EventDate "1984.??.??"]
[PlyCount "70"]
[WhiteElo "2705"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. Rc1 Bb7 9. Be2 Nbd7 10. cxd5 exd5 11. O-O c5 12. Qa4 a6 13. dxc5 bxc5 14. Rfd1 Qb6 15. Qb3 Qa7 $2 ( { Equality achieves the exchange } 15... Qxb3 16. axb3 Nb6 ) 16. Bg3 Rad8 17. Ne1 d4 18. exd4 cxd4 19. Na4 Rc8 20. Rxc8 Rxc8 21. Bc4 Rf8 22. Qd3 Bc6 23. Bb3 Ne4 24. Qxd4 Qb7 $1 { Exchange of queens has become unfavourable. } 25. Bd5 Ndf6 26. Bxc6 Qxc6 27. b3 Re8 { The match has reached a turning point. } 28. Qd3 $6 ( { Analysts praise } 28. Qc4 $1 { There might follow } 28... Qb7 $1 29. Nf3 Rc8 30. Qd3 Qb5 31. Qb1 $1 { White has winning chances. } ) 28... h5 $1 { Square g4 becomes an outpost for a knight. } 29. Qc4 Qb7 30. Nf3 Rc8 31. Qe2 Ng4 32. Ne5 Nxg3 33. hxg3 Qb5 34. Nc4 Bf6 35. Nab6 Re8 { Karpov failed to score the
decisive sixth win. Kasparov struck back in the next game. } ( { The extra pawn has no importance in the variation } 35... Re8 36. Qd2 Be7 $1 37. Nd5 $5 Bc5 38. Nde3 Nxe3 39. Nxe3 Bxe3 40. fxe3 Qe5 ) 1/2-1/2
[Event "Wch31-KK1"]
[Site "Moscow"]
[Date "1984.??.??"]
[Round "32"]
[White "Kasparov, Gary"]
[Black "Karpov, Anatoly"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2705"]
[ECO "E12"]
[EventDate "1984.??.??"]
[PlyCount "81"]
[WhiteElo "2715"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. a3 d5 6. cxd5 Nxd5 7. Qc2 Nd7 $5 8. Nxd5 $1 exd5 9. Bg5 f6 10. Bf4 c5 11. g3 g6 12. h4 Qe7 13. Bg2 Bg7 14. h5 { White has gained the initiative in the opening. } 14... f5 $6 ( { A better choice is } 14... g5 $5 15. h6 Bf8 16. Bd2 Rg8 ) 15. Qd2 $5 Bf6 16. Rc1 Rc8 17. Rc3 Rc6 $6 ( { Black has to play the unpleasant } 17... O-O $5 18. hxg6 hxg6 ) 18. Re3 $6 ( { A violent attack starts with } 18. Bg5 $1 O-O 19. hxg6 hxg6 20. Bxf6 Rcxf6 { (Dorfman) } 21. Ng5 $1 ) 18... Re6 19. Rxe6 Qxe6 20. Ng5 Qe7 21. dxc5 Nxc5 22. hxg6 d4 $1 { Otherwise Black will lose his d-pawn. } 23. g7 $5 ( { A fine idea is } 23. Nf7 $5 Bxg2 24. Rh2 Rf8 25. Rxh7 $1 Qe6 26. Nd6+ Kd8 27. Nb5 { with great complications. } ) 23... Bxg7 24. Bxb7 Qxb7 25. f3 Qd5 $2 { Karpov opts for a counteraction. } ( { He should have played } 25... h6 26. Nh3 { and suffer. } ) 26. Rxh7 Rxh7 27. Nxh7 Qb3 ( { Commentators prefer } 27... d3 $1 28. b4 Ne6 { but } 29. Be3 $1 { keeps a big advantage. } ) 28. Bd6 Ne6 29. Ng5 Bh6 30. Bf4 Bxg5 31. Bxg5 Nxg5 32. Qxg5 Qxb2 33. Qxf5 Qc1+ 34. Kf2 Qe3+ 35. Kf1 Qc1+ 36. Kg2 Qxa3 37. Qh5+ Kd7 38. Qg4+ Kc6 39. Qxd4 b5 40. g4 b4 41. g5 { Karpov res
igned the adjourned game. Kasparov had defeated him for the first time! The
score was 5-1. } ( { There might follow } 41. g5 b3 42. Qe4+ $1 Kd6 $1 43. Qg6+ $1 Ke7 44. Qg7+ Kd8 45. g6 Qe7 46. Qg8+ Kc7 47. Qc4+ Kd6 48. Qxb3 Qg5+ 49. Kf1 Qxg6 50. Qa3+ { and White wins. } ) 1-0
[Event "Wch31-KK1"]
[Site "Moscow"]
[Date "1985.??.??"]
[Round "41"]
[White "Karpov, Anatoly"]
[Black "Kasparov, Gary"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[BlackElo "2715"]
[ECO "C42"]
[EventDate "1984.??.??"]
[PlyCount "141"]
[WhiteElo "2705"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. c4 Nb4 9. Be2 dxc4 10. Bxc4 O-O 11. Nc3 Nd6 12. Bb3 Bf6 13. h3 Bf5 14. Be3 Re8 15. a3 Nd3 $6 { Kasparov's counteraction results in the loss of a pawn. } ( { Equality keeps } 15... Nc6 ) 16. Rb1 $1 c5 17. dxc5 Ne4 $1 ( { No good is } 17... Nxb2 $2 18. Rxb2 Bxc3 19. cxd6 Bxb2 20. Bxf7+ $1 Kxf7 21. Qd5+ { (Taimanov). } ) 18. Bc2 $1 Nxb2 ( { The complications of } 18... Ng3 $6 19. fxg3 Rxe3 20. Qd2 Bd4 21. Nxd4 Qxd4 22. Kh2 Bg6 23. Nd5 $1 { are pleasant for White (Taimanov). } ) 19. Qxd8 Raxd8 20. Rxb2 Bxc3 21. Rxb7 Nxc5 22. Bxc5 Bxc2 23. Rxa7 Bd1 24. Re7 Rxe7 25. Bxe7 Rd3 26. Ng5 Bb2 27. Bb4 h6 28. Ne4 f5 29. Nc5 Rd5 30. Re1 f4 $2 ( { Correct is } 30... Bf6 $1 31. a4 $6 Bd8 $1 ) 31. a4 Rd4 32. a5 Rxb4 33. Rxd1 $2 ( { Dorfman gives the win for White by } 33. a6 $1 Ba4 ( 33... Bb3 34. Nxb3 Ra4 35. Nc5 Ra5 36. Re4 g5 37. Ra4 Rxa4 38. Nxa4 Bd4 39. Nc3 $18 ) 34. a7 Bc6 35. Re6 Bd5 36. Rd6 $18 ) 33... Bd4 34. Ne6 Ba7 35. Rd7 $2 ( { The last opportunity to win brings } 35. Nxg7 $1 Rb2 36. Nf5 Bxf2+ 37. Kf1 h5 38. Ne7+ Kf7 39. Nd5 ) 35... Rb1+ 36. Kh2 Bxf2 37. Nxf4 Ra1 38. Ne6 Rxa5 39. Rxg7+ Kh8 40. Rf7 Be3 41. Kg3 Bd2 42. Rd7 Bc3 43. Kf3 Kg8 44. Nf4 Rf5 45. Ke4 Rf7 46. Rd8+ Kh7 47. Rd3 Re7+ 48. Kf3 Bb2 49. Rb3 Bc1 50. Nd5 Re5 51. Nf6+ Kg6 52. Ne4 Rf5+ 53. Ke2 Re5 54. Rb4 Re7 55. Rc4 Re8 56. g3 Bb2 57. Kf3 Re6 58. Rc5 Bd4 59. Rd5 Be5 60. Rb5 Bc7 61. Rc5 Bb6 62. Rc8 Bd4 63. Rg8+ Bg7 64. h4 Ra6 65. Kf4 Ra5 66. Re8 Rf5+ 67. Ke3 Re5 68. Rg8 Re7 69. Kf4 Rf7+ 70. Kg4 h5+ 71. Kh3 1/2-1/2
[Event "Wch31-KK1"]
[Site "Moscow"]
[Date "1985.??.??"]
[Round "48"]
[White "Kasparov, Gary"]
[Black "Karpov, Anatoly"]
[Result "1-0"]
[Annotator "JvR"]
[BlackElo "2705"]
[ECO "C42"]
[EventDate "1984.??.??"]
[PlyCount "133"]
[WhiteElo "2715"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 Nf6 9. Nc3 O-O 10. h3 dxc4 11. Bxc4 Na5 12. Bd3 Be6 13. Re1 Nc6 14. a3 a6 15. Bf4 Qd7 $6 ( { Better is } 15... Nd5 16. Bg3 Bf6 { (Gufeld-Schussler, Havana 1985). } ) 16. Ne5 Nxe5 17. dxe5 Nd5 18. Nxd5 Bxd5 19. Qc2 g6 20. Rad1 c6 21. Bh6 Rfd8 $5 { Kasparov won the previous game and has reached an advantageous position again. } 22. e6 $1 fxe6 23. Bxg6 Bf8 $6 ( { The grandmasters in the press room prefer } 23... Bf6 $1 ) 24. Bxf8 Rxf8 25. Be4 Rf7 26. Re3 Rg7 27. Rdd3 $1 Rf8 $2 ( { A fine defence gives } 27... Qc7 $1 28. Qc3 Rf8 29. Bxd5 exd5 30. Rg3 Rf7 $1 31. Rde3 Qd8 ) 28. Rg3 $1 Kh8 $1 ( { Avoids } 28... Rf7 $2 29. Bxh7+ $1 ) 29. Qc3 Rf7 30. Rde3 Kg8 31. Qe5 $1 Qc7 $5 32. Rxg7+ Rxg7 33. Bxd5 Qxe5 ( { Black has to lose a pawn due to } 33... exd5 $4 34. Qe8# ) 34. Bxe6+ $1 Qxe6 35. Rxe6 { White has a material plus in the rook ending. } 35... Rd7 36. b4 Kf7 37. Re3 Rd1+ 38. Kh2 Rc1 39. g4 b5 40. f4 c5 41. bxc5 Rxc5 42. Rd3 $1 Ke7 43. Kg3 a5 44. Kf3 b4 45. axb4 axb4 46. Ke4 Rb5 $6 ( { Longer resistance offers } 46... Rc1 $1 47. Rb3 Rc4+ 48. Ke5 h6 49. f5 Kf7 50. Kd5 Rc3 51. Rxb4 Rxh3 52. Ke5 Re3+ 53. Kf4 Ra3 54. Rb7+ Kf6 55. Rb6+ Kg7 56. Rg6+ { and White will win eventually. } ) 47. Rb3 Rb8 48. Kd5 Kf6 49. Kc5 Re8 50. Rxb4 Re3 51. h4 Rh3 52. h5 Rh4 53. f5 $2 { "Kasparov did not have confidence in his
calculations" his trainer Nikitin admitted later. } ( { The forced win } 53. g5+ $1 Kf5 54. h6 Rh1 55. Kd6 Re1 56. Rb8 Kxf4 57. g6 hxg6 58. h7 Rh1 59. h8=Q Rxh8 60. Rxh8 g5 61. Kd5 { is found in the press room. } ) 53... Rh1 54. Kd5 Rd1+ 55. Rd4 Re1 56. Kd6 Re8 $2 { Karpov misses the best defence. } ( { Taimanov analyses } 56... Rg1 $1 57. Kd7 Kf7 58. Kd8 Rg2 59. h6 Kf8 $1 60. Kc7 $1 Kf7 61. Rd7+ Kf6 $1 62. Rg7 { and evaluates the position as lost for White. However } 62... Ra2 $1 63. Kc6 Ra4 64. Kd5 Rd4+ { shows no opening in the defence line. } ) 57. Kd7 Rg8 58. h6 Kf7 59. Rc4 Kf6 60. Re4 Kf7 61. Kd6 Kf6 62. Re6+ Kf7 63. Re7+ Kf6 64. Rg7 Rd8+ 65. Kc5 Rd5+ 66. Kc4 Rd4+ 67. Kc3 { The score became 5-3.  FIDE
president Campomanes ended the match. The decision was hardly accepted in the
chess world at first. Later many people recognised the inhuman length of the
encounter. } 1-0