Icannos/chess_studies huggingface dataset:
[Event "Wch21"]
[Site "Moscow"]
[Date "1957.??.??"]
[Round "6"]
[White "Smyslov, Vasily"]
[Black "Botvinnik, Mikhail"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "D98"]
[EventDate "1957.??.??"]
[PlyCount "55"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. O-O-O $5 ( 9. Nd2 Nb6 { stems from Botvinnik-Smyslov, Den Haag 1948. } ) 9... Nc6 ( { Better is } 9... Nb6 $1 10. Qc5 N8d7 11. Qa3 { (Sosonko-Timman, Wijk aan Zee 1979). } ) 10. h3 Bxf3 11. gxf3 Nb6 12. Qc5 f5 13. Ne2 Qd6 14. e5 Qxc5+ $2 ( { Correct is } 14... Qd5 { (Furman-Krogius, Riga 1958). } ) 15. dxc5 Nc4 16. f4 Rfd8 17. Bg2 Nxe3 $2 { Botvinnik tries to play prophylactic, but fails miserably. } ( { The surprising variation } 17... Nb4 $1 18. Bxb7 Rab8 19. c6 Nxa2+ 20. Kb1 Nb4 21. Bxa7 Rd2 $1 22. Rxd2 Nxd2+ { leads to a perpetual. } ) 18. fxe3 Nb4 19. Bxb7 Rab8 20. c6 Kf7 21. Nd4 e6 22. Nb5 Nd5 23. Rxd5 $1 exd5 24. Nxc7 Rdc8 25. Bxc8 Rxc8 26. Nxd5 Rxc6+ 27. Kd2 Ke6 28. Nc3 1-0
[Event "Wch21"]
[Site "Moscow"]
[Date "1957.??.??"]
[Round "12"]
[White "Smyslov, Vasily"]
[Black "Botvinnik, Mikhail"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "A42"]
[EventDate "1957.??.??"]
[PlyCount "86"]

1. e4 c5 2. Nf3 g6 3. c4 Bg7 4. d4 d6 5. Nc3 Nc6 6. Be3 Bg4 7. dxc5 dxc5 8. Qxd8+ Rxd8 9. Bxc5 Bxc3+ 10. bxc3 Nf6 $2 { Botvinnik chooses for combat instead of the needed prophylaxis. } ( { An attack on the queenside prevents } 10... Bxf3 11. gxf3 Nf6 ) 11. Nd4 Nxe4 12. Nxc6 bxc6 13. Bxa7 Bf5 ( { Slightly better is } 13... Nxc3 { (Keene-Fuller, Nice 1974). } ) 14. f3 Nd6 15. a4 Ra8 16. Bb6 O-O 17. c5 Nc8 18. g4 Be6 19. a5 Nxb6 20. cxb6 Rfb8 21. Bd3 Rxb6 $1 22. axb6 $1 Rxa1+ 23. Kd2 { White relies on the strength of the passed pawn. } 23... Ra2+ 24. Ke3 Bc8 25. Rd1 Rb2 26. Bc4 Kg7 27. Rd8 Be6 28. Bxe6 fxe6 29. Rb8 e5 30. c4 Kf7 31. c5 Ke6 32. Rd8 $1 g5 33. h3 Rb1 34. Kd2 Rb5 35. Kd3 Rb1 36. Kc4 Rc1+ 37. Kb4 Rb1+ 38. Ka4 Ra1+ 39. Kb4 Rb1+ 40. Ka3 Ra1+ 41. Kb2 Ra5 42. Rd3 Ra8 43. Kb3 Ra5 { The silent killer struck again. Halfway Smyslov played superior chess and led
by 7-5. } 1-0
[Event "Wch21"]
[Site "Moscow"]
[Date "1957.??.??"]
[Round "17"]
[White "Botvinnik, Mikhail"]
[Black "Smyslov, Vasily"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "D73"]
[EventDate "1957.??.??"]
[PlyCount "138"]

1. Nf3 Nf6 2. g3 g6 3. c4 c6 4. Bg2 Bg7 5. d4 O-O 6. Nc3 d5 7. cxd5 cxd5 8. Ne5 b6 9. Bg5 Bb7 10. Bxf6 $6 Bxf6 11. O-O e6 12. f4 Bg7 13. Rc1 f6 14. Nf3 Nc6 15. e3 Qd7 16. Qe2 Na5 17. h4 Nc4 18. Bh3 Nd6 19. Kh2 a5 20. Rfe1 b5 $1 21. Nd1 b4 22. Nf2 Ba6 23. Qd1 Rfc8 24. Rxc8+ Rxc8 25. Bf1 Bxf1 26. Rxf1 Qc6 27. Nd3 Qc2+ $6 28. Qxc2 Rxc2+ 29. Rf2 Rxf2+ 30. Nxf2 Nc4 31. Nd1 Kf7 32. b3 $2 { Square c3 becomes weak. } ( { Better is } 32. g4 h5 33. g5 Bh8 $1 { (Smyslov). } ) 32... Nd6 33. Kg2 h5 34. Kh3 Ne4 35. g4 $2 { Pawn h4 becomes a weakness. } 35... hxg4+ 36. Kxg4 f5+ 37. Kh3 Bf6 38. Ne1 Kg7 39. Nd3 Nc3 40. Nxc3 bxc3 41. Ne1 $6 ( 41. b4 $1 { is more active. } ) 41... Kh6 42. Nc2 Be7 43. Kg3 $2 ( { Rescue brings } 43. a3 Kh5 44. b4 axb4 45. axb4 Bxh4 46. b5 Bd8 47. Kg3 g5 48. fxg5 Kxg5 49. Kf3 Bb6 $1 50. Nb4 $1 Kf6 { (Smyslov) } 51. Nd3 c2 52. Ke2 Ba5 53. b6 Bxb6 54. Kd2 $11 ) 43... Kh5 44. Kf3 Kxh4 45. Ne1 g5 46. fxg5 Kxg5 47. Nc2 Bd6 48. Ne1 Kh4 49. Nc2 Kh3 50. Na1 Kh2 51. Kf2 Bg3+ 52. Kf3 Bh4 53. Nc2 Kg1 54. Ke2 Kg2 55. Na1 Be7 56. Nc2 Kg3 57. Ne1 Bd8 58. Nc2 Bf6 59. a3 Be7 60. b4 a4 61. Ne1 Bg5 62. Nc2 Bf6 63. Kd3 ( { If the white king stays on e2, Black wins by } 63. b5 Bd8 64. Ne1 Ba5 65. Nc2 Kg4 66. Ne1 Bc7 67. Nc2 Bb6 68. Nb4 f4 { (Smyslov). } ) 63... Kf2 64. Na1 Bd8 65. Nc2 Bg5 66. b5 Bd8 67. Nb4 Bb6 68. Nc2 Ba5 69. Nb4 Ke1 ( { Black completes the encirclement with } 69... Ke1 70. Nc2+ Kd1 71. Na1 Kc1 72. Nc2 Kb2 { and he wins a second pawn.  This game broke the resistance.
Smyslov won the match with 12 1/2 - 9 1/2 (+6, =13, -3). He became world
champion in April 1957. } ) 0-1
[Event "Wch22"]
[Site "Moscow"]
[Date "1958.??.??"]
[Round "1"]
[White "Smyslov, Vasily"]
[Black "Botvinnik, Mikhail"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "B11"]
[EventDate "1958.??.??"]
[PlyCount "124"]

{ Botvinnik was great in collecting privileges. He used the right for a return
match within a year. Smyslov had relaxed sfter his world championship and
missed the power for a new confrontation. } 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 Nf6 6. d3 e6 7. Be2 Nbd7 8. Qg3 g6 9. O-O Bg7 10. Bf4 Qb6 11. Rab1 O-O 12. Bc7 Qd4 13. Bf3 e5 14. Bd6 Rfe8 15. Ba3 dxe4 16. dxe4 b5 $1 { Botvinnik shows ambition on the queenside in a quiet Caro-Kann. } 17. Rfd1 Qb6 18. b3 Nc5 19. Bc1 Qc7 20. Be3 Ne6 21. a4 a6 22. b4 Rad8 23. Be2 Qe7 24. axb5 axb5 25. Rxd8 Rxd8 26. Bb6 $2 ( 26. Qh4 Qd6 27. Bd3 { consolidates. } ) 26... Ra8 27. f3 Ra3 28. Qe1 Bh6 29. Bf1 Nd4 30. Bc5 Qe6 31. Bd3 Nd7 32. Bxd4 exd4 33. Ne2 Be3+ 34. Kh1 Ne5 { Botvinnik attacks on all fronts. } 35. Qf1 ( { The natural } 35. Qd1 { is punished by } 35... Nxf3 $1 ) 35... Qd6 36. f4 Nxd3 37. cxd3 Rxd3 38. Qf3 Rd2 39. Rf1 Qxb4 40. e5 Qc4 41. Ng3 Rc2 42. f5 Rc1 43. e6 fxe6 44. fxg6 Rxf1+ 45. Nxf1 hxg6 46. Qf6 b4 47. Kh2 g5 48. Nxe3 dxe3 49. Qxg5+ Kf7 50. Qxe3 b3 51. Qe5 c5 52. Qc7+ Kg6 53. Qb8 Kf5 54. Qf8+ Ke4 55. Qf6 Qd5 56. Qf3+ Kd4 57. Qd1+ Ke5 58. Qe2+ Kd6 59. Qa6+ Ke7 60. Qa7+ Kf6 61. Qh7 Qe5+ 62. Kh1 b2 { Indecisive play was reproved. } 0-1
[Event "Wch22"]
[Site "Moscow"]
[Date "1958.??.??"]
[Round "2"]
[White "Botvinnik, Mikhail"]
[Black "Smyslov, Vasily"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "E83"]
[EventDate "1958.??.??"]
[PlyCount "81"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 a6 $5 { A fight starts on the queenside. } 7. Bd3 Nc6 8. Nge2 Rb8 9. a3 Nd7 10. Bb1 Na5 11. Ba2 b5 12. cxb5 axb5 13. b4 $1 Nc4 14. Bxc4 bxc4 15. O-O c6 16. Qd2 Nb6 $2 ( { Weakness on the black squares is avoided by } 16... Re8 17. Bh6 Bh8 { (Botvinnik). } ) 17. Bh6 $1 Bxh6 18. Qxh6 f6 $6 { Black loses a tempo. } 19. a4 Na8 20. Rfb1 f5 21. Qe3 fxe4 22. fxe4 Nc7 23. d5 cxd5 24. exd5 Bb7 25. Rf1 Qd7 26. Qd4 e6 27. dxe6 Nxe6 28. Qg4 Rfe8 29. Nd4 Qg7 30. Rad1 Nc7 31. Qf4 { Knights rule in the centre. } 31... Re5 $2 { A blunder costs a pawn. } 32. Nc6 $1 Bxc6 33. Qxc4+ d5 34. Qxc6 Rd8 35. Qb6 Qe7 36. Qd4 Qd6 37. Rfe1 Rde8 38. Rxe5 Rxe5 39. b5 Ne6 40. Qa7 d4 41. Ne4 $1 { Botvinnik also won the third game. } 1-0
[Event "Wch22"]
[Site "Moscow"]
[Date "1958.??.??"]
[Round "11"]
[White "Smyslov, Vasily"]
[Black "Botvinnik, Mikhail"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "D99"]
[EventDate "1958.??.??"]
[PlyCount "47"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Rd1 Nb6 10. Qb3 Nc6 11. d5 Ne5 12. Be2 Nxf3+ 13. gxf3 Bh5 14. h4 Qd7 15. a4 ( { Known is } 15. f4 $5 Bxe2 16. Kxe2 { (Gereben-Kotov, Budapest 1949). } ) 15... a5 16. Nb5 Nc8 17. Bd4 ( { Theory becomes } 17. f4 { (Uhlmann-Kozma, Zinnowitz 1967). } ) 17... Nd6 ( { The Smyslov System asks for } 17... Bxd4 18. Nxd4 Nb6 ) 18. Bxg7 Kxg7 19. Nd4 Kg8 20. Rg1 Qh3 21. Qe3 { Black balances at the edge. } 21... c5 $2 ( { The consequent move is } 21... Qxh4 $1 { Botvinnik expects } 22. Qh6 { and misses } ( 22. e5 Ne8 ) 22... e5 23. dxe6 fxe6 24. Nxe6 Rf7 25. Ng5 { (Ragozin) } 25... Rg7 26. Ne6 $11 ) 22. dxc6 bxc6 23. Qg5 c5 ( { The bishop is saved by } 23... Kh8 { but } 24. Qxe7 { leads to unsolvable problems for the knight. } ) 24. Nc6 1-0
[Event "Wch22"]
[Site "Moscow"]
[Date "1958.??.??"]
[Round "14"]
[White "Botvinnik, Mikhail"]
[Black "Smyslov, Vasily"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "A16"]
[EventDate "1958.??.??"]
[PlyCount "135"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nxc3 6. bxc3 Bg7 7. Rb1 Nd7 8. c4 O-O 9. Nf3 Rb8 10. O-O b6 11. d4 e5 12. Ba3 Re8 13. dxe5 Bb7 $1 14. Qc2 Nxe5 15. Rfd1 Qc8 16. Nxe5 Bxg2 17. Kxg2 Rxe5 18. Rd5 Qe6 19. Rxe5 Bxe5 20. Rd1 Re8 21. Qe4 Bf6 22. Qxe6 Rxe6 { Black has a better pawn structure. } 23. Kf3 Rc6 24. Rc1 Bd4 25. e3 Bc5 26. Bb2 f5 27. Ke2 Kf7 28. h3 Be7 29. a4 h5 30. Kd3 h4 $5 31. g4 $5 Rc5 ( { Some risk takes } 31... fxg4 $5 32. hxg4 Rd6+ 33. Ke2 Bf6 ) 32. Bc3 Rc6 33. Rg1 Rd6+ 34. Kc2 Bf6 35. gxf5 gxf5 36. Bxf6 Kxf6 37. Rg8 Rc6 38. Kc3 a6 39. Rh8 Kg5 40. Rg8+ Kf6 41. Rh8 Kg5 42. Kd4 Rc5 $1 43. Rh7 $1 Kg6 ( { A draw gains } 43... Rc6 $1 44. Rd7 $5 Kf6 45. Rd5 Ke6 46. Kc3 Rd6 $1 { (Botvinnik). } ) 44. Rd7 $5 Kf6 45. Rd5 Rc6 46. Kc3 Re6 47. Rd4 Kg5 48. Rd7 Rc6 49. Kb4 $1 Kf6 50. Rd4 Kg5 51. Rd8 Re6 52. Rc8 f4 $2 ( { Both parties miss the right counter-play } 52... c5+ $1 53. Kc3 f4 54. Rg8+ Kf5 55. Rf8+ Rf6 56. e4+ Ke5 57. Re8+ Re6 58. Rxe6+ Kxe6 { draw! } ) 53. exf4+ Kxf4 54. Rxc7 Kf3 55. Rh7 Re4 56. Rh6 b5 $5 57. axb5 $6 ( { Good is } 57. Rxa6 $1 bxc4 58. Rc6 c3+ 59. Kb3 Kxf2 60. Rxc3 { (Botvinnik). } ) 57... axb5 58. Rf6+ Kg2 59. Kxb5 { Does White have a win? } 59... Re2 $6 ( { A draw seems the result of } 59... Re1 $1 60. c5 Rb1+ 61. Ka6 Kxh3 62. c6 Ra1+ 63. Kb7 Rb1+ 64. Kc8 Kg2 65. f4 h3 66. Rg6+ Kf3 67. Rh6 Kg3 { (Botvinnik), but } 68. c7 Rf1 69. Rg6+ $1 Kf2 70. Kd7 Rd1+ 71. Rd6 Rxd6+ 72. Kxd6 h2 73. c8=Q h1=Q 74. Qc5+ Kg3 75. Qg5+ { leads to a theoretical win for White. } ) 60. c5 Rb2+ 61. Ka6 Ra2+ 62. Kb7 Rb2+ 63. Rb6 Rc2 64. c6 Kxh3 65. c7 Kg2 66. Rc6 Rb2+ 67. Rb6 Rc2 68. f4 { The game wa
s played in three stages in the Tchaikovsky Concert Hall. Botvinnik led by 9-5. } 1-0
[Event "Wch22"]
[Site "Moscow"]
[Date "1958.??.??"]
[Round "22"]
[White "Botvinnik, Mikhail"]
[Black "Smyslov, Vasily"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "A95"]
[EventDate "1958.??.??"]
[PlyCount "76"]

1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nf3 Be7 5. O-O O-O 6. c4 c6 7. Nc3 d5 8. Bg5 Nbd7 9. e3 Qe8 10. Qc2 Kh8 11. Ne2 h6 12. Bxf6 Bxf6 13. cxd5 exd5 14. Nf4 g5 15. Nd3 Rg8 { Smyslov plays ambitiously during the final stage of the match. } 16. Qc3 Be7 17. Nfe5 Nf6 18. f3 Be6 19. Nc5 Bxc5 20. Qxc5 Nd7 21. Nxd7 Qxd7 22. Rae1 Rg7 23. Rf2 b6 24. Qc3 Qd6 25. Rc2 Bd7 26. b4 $6 ( { A plus keeps } 26. e4 f4 27. e5 Qe6 28. g4 { (Botvinnik). } ) 26... h5 27. Kh1 h4 28. gxh4 gxh4 29. f4 Rag8 30. Bf3 Be8 31. Qd2 $1 Qh6 32. Qe2 h3 33. Rcc1 Rg2 $1 34. Bxg2 Rxg2 { The critical position has arisen. } 35. Qf3 $2 ( { The right defence is } 35. Qf1 $1 Bh5 36. e4 $1 { (Goldberg) } 36... fxe4 37. Rc3 Bg4 38. Ree3 Qh4 39. Rg3 Bf3 40. Rcxf3 exf3 41. Qxf3 Rxa2 42. Rxh3 Ra1+ 43. Kg2 Ra2+ 44. Kf1 Rf2+ $1 45. Qxf2 Qxh3+ $11 ) 35... Qh4 $1 36. b5 Bh5 37. Qxg2 hxg2+ 38. Kg1 c5 { Smyslov curt
ailed the gap at the end of the match, but Botvinnik won with 12 1/2 - 10 1/2
(+7, =11, -5). He deserved to win the return match, but many regarded his
privilege as unfair. Anaway, Botvinnik had regained the title in May 1958. } 0-1
[Event "Candidates' tournament"]
[Site "Yugoslavia"]
[Date "1959.??.??"]
[Round "6"]
[White "Tal, Mikhail"]
[Black "Fischer, Bobby"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "E93"]
[EventDate "1959.??.??"]
[PlyCount "81"]

{ When Tal won the Soviet championship, Moscow 1957, a star was born. His
attacking and speculative style won the hearts of chess fans worldwide. The
'Magician of Riga' seemed to ridicule the laws of classical chess in his wild
adventures. Actually, his games had a sound positional basis. He also played
the endgame accurately. Sometimes incredible fireworks set the board on fire. 
 He qualified for the interzonal by winning the next championship, Riga 1958,
and got in the candidates' tournament by winning Portoroz 1958.  The
candidates' match tournament was played in four cycles of seven rounds during
the next year. Two cycles took place in Bled. The Casino was the playing hall
and Toplice the hotel. } 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. d5 Nbd7 8. Bg5 h6 9. Bh4 a6 $5 10. Nd2 Qe8 $5 { Fischer prepares an attack in a remarkable way. Tal reacts quietly. } 11. O-O Nh7 12. b4 Ng5 13. f3 f5 14. Bf2 Qe7 15. Rc1 Nf6 16. c5 Bd7 17. Qc2 Nh5 18. b5 $5 { Tal stirs up the game. The move surprised Fischer. } ( { Equality keeps } 18. cxd6 cxd6 19. Nc4 fxe4 20. fxe4 Nf4 21. Be3 $1 ) 18... fxe4 $1 ( { Tal rejects } 18... dxc5 { due to } 19. bxa6 b6 20. Nc4 ) 19. Ndxe4 Nxe4 20. fxe4 Nf4 21. c6 Qg5 22. Bf3 bxc6 23. dxc6 Bg4 24. Bxg4 Qxg4 25. Be3 axb5 26. Bxf4 exf4 27. Nxb5 Rf7 ( { An attack starts } 27... f3 $1 { (Tal). } ) 28. Qc4 Rc8 29. Rf3 Be5 $2 30. Rcf1 $2 ( { Both players miss the combination } 30. h3 $1 Qg5 31. Qe6 Rb8 32. Nxc7 $1 Rb2 33. Qe8+ Rf8 34. Qxf8+ ) 30... Kg7 31. a4 Ra8 32. Kh1 Qg5 $2 ( { Correct is } 32... Qh5 ) 33. g3 $1 { Tal counterattacks brilliantly. } 33... Raf8 34. gxf4 Bxf4 ( 34... Rxf4 35. Nxc7 $1 ) 35. Nd4 $1 Qh4 36. Rxf4 Rxf4 37. Ne6+ Kh8 38. Qd4+ R8f6 39. Nxf4 Kh7 40. e5 dxe5 41. Qd7+ 1-0
[Event "Candidates' tournament"]
[Site "Yugoslavia"]
[Date "1959.??.??"]
[Round "8"]
[White "Tal, Mikhail"]
[Black "Smyslov, Vasily"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "B10"]
[EventDate "1959.??.??"]
[PlyCount "51"]

1. e4 c6 2. d3 d5 3. Nd2 e5 4. Ngf3 Nd7 5. d4 dxe4 6. Nxe4 exd4 7. Qxd4 Ngf6 8. Bg5 Be7 9. O-O-O $1 O-O 10. Nd6 $5 Qa5 11. Bc4 $5 b5 $1 12. Bd2 $5 Qa6 $5 { Smyslov accepts the provocation. } ( 12... Qa4 13. Nxc8 Raxc8 14. Bb3 Qxd4 15. Nxd4 { gives calmness. } ) 13. Nf5 Bd8 ( { Quickly loses } 13... Bc5 $2 14. Qh4 bxc4 15. Bc3 Qxa2 16. Rxd7 $1 Bxd7 17. Nh6+ gxh6 18. Qxf6 { (Khalifman). } ) 14. Qh4 bxc4 15. Qg5 Nh5 $1 ( { Black draws in } 15... g6 16. Bc3 $1 { (Ragozin) } 16... Re8 $1 17. Rhe1 Rxe1 18. Rxe1 Qxa2 19. Qh6 gxf5 $1 20. Qg5+ Kf8 ) 16. Nh6+ Kh8 17. Qxh5 Qxa2 18. Bc3 { The critical position of the game. } 18... Nf6 $2 ( { A plus gains } 18... Bf6 $1 19. Nxf7+ Kg8 20. N3g5 { (Khalifman) } 20... Qa1+ $1 21. Kd2 Bxc3+ 22. bxc3 Nf6 $1 23. Qh4 Qa5 24. Qxc4 Qd5+ ) 19. Qxf7 $3 Qa1+ 20. Kd2 Rxf7 21. Nxf7+ Kg8 22. Rxa1 Kxf7 23. Ne5+ Ke6 24. Nxc6 Ne4+ 25. Ke3 Bb6+ 26. Bd4 1-0
[Event "Candidates' tournament"]
[Site "Yugoslavia"]
[Date "1959.??.??"]
[Round "11"]
[White "Olafsson, Fridrik"]
[Black "Tal, Mikhail"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "B41"]
[EventDate "1959.??.??"]
[PlyCount "142"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6 8. Ne2 $5 Qc7 9. O-O Ne5 10. f4 Nxc4 { White has given a pawn for the initiative. } 11. Kh1 Be7 12. b3 Nb6 13. e5 Nfd5 14. Ne4 f5 15. exf6 Nxf6 16. N2g3 Nbd5 17. Bb2 O-O 18. Rc1 Qd8 $1 19. Qe2 b5 20. Nxf6+ Bxf6 21. Qh5 g6 $1 ( { Tal dislikes } 21... h6 22. Be5 $1 ) 22. Bxg6 $1 Qe7 $1 { Tal defends in an excellent manner. } ( { Olafsson had prepared } 22... hxg6 $2 23. Qxg6+ Kh8 24. Rf3 $1 Bxb2 25. Nf5 $1 ) 23. Bxf6 Nxf6 24. Qf3 Rb8 25. Bd3 Bb7 26. Qe2 Kh8 27. Rce1 Rbe8 28. Nf5 Qb4 29. Qb2 Rc8 30. Ng3 Qc3 31. Qe2 Rg8 32. Ne4 Qd4 33. Ng5 Rg7 34. Qe3 Qxe3 35. Rxe3 Rc3 36. Rh3 b4 37. Kg1 e5 $1 38. Rg3 $2 ( { Correct is } 38. Rh6 exf4 39. h4 Ng4 40. Rxh7+ ) 38... e4 39. Bc4 d5 40. Be2 d4 41. Bc4 e3 42. Rd1 Bd5 43. Bf1 Re7 44. Be2 d3 45. Bxd3 Rxd3 46. Rxd3 e2 47. Rge3 e1=Q+ 48. Rxe1 Rxe1+ 49. Kf2 Ra1 50. Rd2 h6 51. Ke3 Re1+ 52. Kf2 Re7 53. Kf1 hxg5 54. fxg5 Ng4 55. h3 Ne3+ 56. Kf2 Bxg2 57. Rd4 a5 58. h4 Kg7 59. h5 Nf5 60. Rc4 Rd7 61. Rc5 Be4 62. Re5 Re7 63. Rxa5 Rc7 64. Ra6 Rc2+ 65. Ke1 Nd4 66. Ra7+ Kf8 67. g6 Nf3+ 68. Kd1 Rd2+ 69. Kc1 Rh2 70. Rf7+ Ke8 71. Kd1 Bd3 0-1
[Event "Candidates' tournament"]
[Site "Yugoslavia"]
[Date "1959.??.??"]
[Round "14"]
[White "Tal, Mikhail"]
[Black "Benkoe, Pal"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "A43"]
[EventDate "1959.??.??"]
[PlyCount "59"]

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. d5 d6 5. Nc3 Nf6 6. Bb5+ Nbd7 7. a4 O-O 8. O-O a6 9. Be2 Rb8 10. Re1 Ne8 11. Bf4 Nc7 12. Bf1 b5 13. Qd2 Re8 14. h3 Nf6 15. Rad1 Bd7 16. e5 $5 b4 $1 17. Ne4 $5 { Suddenly the board is set on fire. } 17... Nxe4 $1 { Black accepts the sacrifice. } 18. Rxe4 Bxa4 19. Bh6 Bh8 $1 ( { Not } 19... Bxc2 $2 20. Rh4 $1 Bxd1 21. Bxg7 Bxf3 { (Khalifman) } 22. Rxh7 $1 ) 20. Rde1 f6 ( { Analysts prefer } 20... dxe5 21. Nxe5 Nxd5 ( 21... Qxd5 $4 22. Bc4 Qxd2 23. Bxf7# ) ) 21. e6 f5 22. Rh4 Bxb2 $2 ( { The battle continues } 22... Bf6 23. Ng5 Rb6 { and 24...Qa8. } ) 23. Bf8 $3 { Square h6 is vacated. } 23... Rxf8 24. Qh6 Rf7 25. exf7+ Kxf7 26. Qxh7+ Bg7 27. Rh6 Qg8 28. Qxg6+ Kf8 29. Ng5 Qxd5 30. Rh8+ $1 { Keres led by half-a-point, when the candidates moves to Zagreb. } 1-0
[Event "Candidates' tournament"]
[Site "Yugoslavia"]
[Date "1959.??.??"]
[Round "16"]
[White "Tal, Mikhail"]
[Black "Gligoric, Svetozar"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "E13"]
[EventDate "1959.??.??"]
[PlyCount "127"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 Bb4 6. e3 h6 7. Bh4 g5 8. Bg3 Ne4 9. Qc2 Bxc3+ 10. bxc3 d6 11. Bd3 Nxg3 12. hxg3 Nd7 13. a4 a5 14. Rb1 $1 g4 15. Nh4 Nf6 16. d5 $5 ( { More consistent is } 16. c5 $1 ) 16... Qe7 $1 17. O-O Nd7 $5 18. dxe6 Qxe6 19. Bf5 $1 Qxc4 20. Rfd1 Nf6 21. Rd4 Qc6 22. Be6 $1 { White's bishop cannot be taken. } 22... Rg8 $1 23. Bc4 Kf8 $2 ( { The pawn returns } 23... O-O-O 24. Qf5+ Nd7 { (Gligoric) } 25. Bxf7 Rg5 { with a proper defence. } ) 24. Bb5 $1 Qc5 25. Rc4 Qe5 26. Rxc7 { White has regained the pawn and will win another one. } 26... Be4 27. Bd3 d5 28. Rc6 Rb8 29. c4 Rg5 30. c5 d4 31. exd4 Qxd4 32. Bxe4 Qxe4 33. cxb6 Qxc2 34. Rxc2 Nd7 35. b7 Nc5 36. Rb5 Nxb7 37. Rcb2 Rxb5 38. Rxb5 Ke7 39. Nf5+ Kd7 40. Nxh6 Kc7 41. Nxf7 Rf8 42. Nh6 Rd8 43. Rg5 Rd1+ 44. Kh2 Ra1 45. Rxg4 Nc5 46. Rc4 Kc6 47. Nf5 Rxa4 48. Nd4+ Kb6 49. Rxa4 Nxa4 50. g4 Nc3 51. Kg3 a4 52. Kf4 a3 53. Nc2 a2 54. g5 Kc5 55. g6 Nd5+ 56. Kg5 Kc4 57. g7 Ne7 58. f4 Kc3 59. Na1 Kb2 60. f5 Kxa1 61. f6 Kb1 62. fxe7 a1=Q 63. e8=Q Qa5+ 64. Kh6 { Tal played the endgame well. } 1-0
[Event "Candidates' tournament"]
[Site "Yugoslavia"]
[Date "1959.??.??"]
[Round "17"]
[White "Keres, Paul"]
[Black "Tal, Mikhail"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "B42"]
[EventDate "1959.??.??"]
[PlyCount "80"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nc6 6. Nxc6 dxc6 7. O-O e5 8. Nd2 Qc7 9. a4 Nf6 10. Qf3 Bc5 11. Nc4 O-O 12. Ne3 Re8 13. Bc4 Be6 14. Bxe6 Rxe6 15. Nf5 g6 16. Nh6+ Kg7 17. Rd1 Rd8 18. Rxd8 Qxd8 { Keres needs a win in the contest with Tal. } 19. Bg5 $2 ( { Good chances are created by } 19. g4 $1 Qd7 { (Ragozin) } 20. g5 Ng8 21. Ng4 ) 19... Qd4 20. h4 Qxb2 21. Rd1 Bd4 22. Rd3 Qxc2 23. Rxd4 $1 exd4 24. e5 Kf8 $1 25. exf6 ( { Slightly better is } 25. Bxf6 $1 Qc1+ 26. Kh2 Qxh6 27. Bg5 Qg7 28. Bf6 Rxf6 29. exf6 Qh6 { (Ragozin). } ) 25... Qc3 26. Qg4 Qe1+ 27. Kh2 Qxf2 28. Qh3 Qe1 29. Qb3 b5 30. axb5 cxb5 31. Qa3+ b4 32. Qb3 Qe5+ 33. Kh1 Qe1+ 34. Kh2 Qe5+ 35. Kh1 Qd6 36. Kg1 d3 $6 ( 36... Qc5 $1 { (Ragozin) keeps the position closed. } ) 37. Qd1 $6 ( { The battle continues } 37. Qc4 $1 Ke8 $1 { (Khalifman). } ) 37... Qc5+ 38. Kh1 Qc2 39. Qf3 d2 40. Bxd2 Qxd2 { Benkoe wore sunglasses against Tal's
hypnotic stare in the 21st round. The Benkoe Defence didn't work. Traffic near
public demonstration boards stopped.   Tal led by 1 1/2 point before Keres,
when the candidates left Zagreb. } 0-1
[Event "Candidates' tournament"]
[Site "Yugoslavia"]
[Date "1959.??.??"]
[Round "26"]
[White "Tal, Mikhail"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "B94"]
[EventDate "1959.??.??"]
[PlyCount "48"]

{ 2000 spectators visited the Worker's Hall in Belgrade. } 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 a6 7. Bg5 Qa5 8. Qd2 e6 9. O-O h6 10. Bh4 g5 $2 ( { Better is } 10... Be7 11. Rad1 Ne5 { (Larsen-Tal, Portoroz 1958). } ) 11. Bg3 Nh5 12. Bxe6 $1 ( { Tal improves on } 12. Rad1 { (Gufeld-Petrosian, Moscow 1959). } ) 12... fxe6 13. Nxe6 Nxg3 14. fxg3 Ne5 15. Rxf8+ $1 Rxf8 16. Qxd6 Rf6 17. Nc7+ $2 ( { The win achieves } 17. Qc7 $1 { (Gligoric) } 17... b6 18. Ng7+ Kf8 19. Nh5 Rf7 $2 20. Qd8# ) 17... Kf7 18. Rf1 Rxf1+ 19. Kxf1 Nc4 20. Qxh6 Qc5 $1 ( { Avoids } 20... Rb8 $2 21. N3d5 $1 Nd2+ 22. Ke2 Bg4+ 23. Kd3 $1 ) 21. Nxa8 $6 { White does not strike. } ( { Maybe } 21. Qh7+ $1 Kf8 22. N3d5 $1 Ne3+ 23. Nxe3 Qxe3 24. Qh8+ Kf7 25. Qe8+ Kg7 26. Nxa8 { wins. } ) 21... Nd2+ 22. Ke2 Bg4+ $1 23. Kd3 Qc4+ 24. Ke3 Qc5+ { Tal won the match
tournament with 20 points (+16, =8, -4). He had become the challenger for the
world title. Only Keres had defeated him in the mini-matches of four games (+1,
-3). } 1/2-1/2
[Event "Wch23"]
[Site "Moscow"]
[Date "1960.??.??"]
[Round "1"]
[White "Tal, Mikhail"]
[Black "Botvinnik, Mikhail"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "C18"]
[EventDate "1960.??.??"]
[PlyCount "63"]

{ A match over twenty-four games began in the Pushkin Theatre for 1100
spectators. } 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 7. Qg4 f5 8. Qg3 Ne7 9. Qxg7 Rg8 10. Qxh7 cxd4 11. Kd1 Bd7 12. Qh5+ Ng6 13. Ne2 d3 $6 ( { Better chances gives } 13... dxc3 14. Nf4 Kf7 15. Bd3 Qxe5 ( 15... Nc6 $2 16. Bxf5 $1 exf5 17. e6+ $1 Bxe6 18. Qh7+ Rg7 19. Qxg7+ $1 ) 16. g4 Nc6 17. gxf5 exf5 18. Rb1 b6 19. Rb5 Ne7 20. Re1 { (Euwe) } 20... Qd4 $1 ) 14. cxd3 Ba4+ 15. Ke1 Qxe5 $5 16. Bg5 Nc6 17. d4 Qc7 18. h4 $1 e5 $1 19. Rh3 $1 Qf7 20. dxe5 Ncxe5 ( { A nice combination is } 20... Rh8 $2 21. e6 $1 Qxe6 22. Re3 $1 Rxh5 23. Rxe6+ Kf7 24. Rxg6 $1 { (Tal). } ) 21. Re3 Kd7 22. Rb1 b6 23. Nf4 Rae8 24. Rb4 $1 Bc6 25. Qd1 { Tal's manouevres with the heavy pieces are impressive. } 25... Nxf4 26. Rxf4 Ng6 27. Rd4 Rxe3+ 28. fxe3 Kc7 29. c4 $1 dxc4 ( 29... Ne7 30. cxd5 Nxd5 31. Bc4 $18 { (Tal). } ) 30. Bxc4 Qg7 31. Bxg8 Qxg8 32. h5 1-0
[Event "Wch23"]
[Site "Moscow"]
[Date "1960.??.??"]
[Round "6"]
[White "Botvinnik, Mikhail"]
[Black "Tal, Mikhail"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "E69"]
[EventDate "1960.??.??"]
[PlyCount "92"]

1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nc3 Nbd7 7. O-O e5 8. e4 c6 9. h3 Qb6 10. d5 cxd5 11. cxd5 Nc5 12. Ne1 Bd7 13. Nd3 Nxd3 14. Qxd3 Rfc8 15. Rb1 Nh5 16. Be3 Qb4 17. Qe2 Rc4 18. Rfc1 Rac8 19. Kh2 f5 20. exf5 Bxf5 21. Ra1 Nf4 $5 { A Tal only moves forwards! The correctness of the sacrifice has
been heavily debated. } 22. gxf4 exf4 23. Bd2 $2 ( { A good try is } 23. a3 $1 Qb3 24. Bxa7 Be5 25. f3 b6 { (Tal), and now } 26. a4 $1 Rb4 27. a5 bxa5 28. Ra2 ) 23... Qxb2 24. Rab1 f3 $1 25. Rxb2 $2 ( { Botvinnik misses the escape } 25. Bxf3 $1 Bxb1 26. Rxb1 Qc2 27. Rc1 Qb2 28. Rb1 { (Tal). } ) 25... fxe2 26. Rb3 Rd4 27. Be1 ( 27. Bg5 Be5+ 28. f4 Rxf4 $1 ) 27... Be5+ 28. Kg1 Bf4 29. Nxe2 Rxc1 30. Nxd4 Rxe1+ 31. Bf1 Be4 32. Ne2 Be5 33. f4 Bf6 34. Rxb7 Bxd5 35. Rc7 ( { The pointe is } 35. Rxa7 Rxe2 $1 ) 35... Bxa2 36. Rxa7 Bc4 37. Ra8+ Kf7 38. Ra7+ Ke6 39. Ra3 d5 40. Kf2 Bh4+ 41. Kg2 Kd6 42. Ng3 Bxg3 43. Bxc4 dxc4 44. Kxg3 Kd5 45. Ra7 c3 46. Rc7 Kd4 0-1
[Event "Wch23"]
[Site "Moscow"]
[Date "1960.??.??"]
[Round "9"]
[White "Tal, Mikhail"]
[Black "Botvinnik, Mikhail"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "B18"]
[EventDate "1960.??.??"]
[PlyCount "116"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. N1e2 Nf6 7. h4 h6 8. Nf4 Bh7 9. Bc4 e6 10. O-O Bd6 11. Nxe6 $5 { Tal delivers a speculative sacrifice. Botvinnik reacts quietly. } 11... fxe6 12. Bxe6 Qc7 13. Re1 Nbd7 14. Bg8+ Kf8 15. Bxh7 Rxh7 16. Nf5 g6 $5 17. Bxh6+ Kg8 18. Nxd6 Qxd6 { Botvinnik chose for simplification. } 19. Bg5 Re7 20. Qd3 Kg7 21. Qg3 $2 { White's pawn structure on the kingside will be ruined. } ( { Right is } 21. Rxe7+ Qxe7 22. Qb3 ) 21... Rxe1+ 22. Rxe1 Qxg3 23. fxg3 Rf8 24. c4 $6 { Hereafter, Botvinnik wins the endgame with accurate play. } ( { The passive } 24. c3 { prepares a last stand. } ) 24... Ng4 25. d5 cxd5 26. cxd5 Ndf6 27. d6 Rf7 28. Rc1 Rd7 29. Rc7 Kf7 30. Bxf6 Nxf6 31. Kf2 Ke6 32. Rxd7 Kxd7 33. Kf3 Kxd6 34. Kf4 Ke6 35. g4 Nd5+ 36. Ke4 Nf6+ 37. Kf4 Nd5+ 38. Ke4 Nb4 39. a3 Nc6 40. h5 g5 $1 41. h6 Kf6 42. Kd5 Kg6 43. Ke6 ( { The critical variation is } 43. Kd6 Na5 $1 44. Kc7 b5 45. Kb8 Nc4 46. Kxa7 Nxb2 47. Kb6 Nc4+ { (Tal). } ) 43... Na5 44. a4 Nb3 45. Kd6 a5 46. Kd5 Kxh6 47. Kc4 Nc1 48. Kb5 Nd3 49. b3 Nc1 50. Kxa5 Nxb3+ 51. Kb4 Nc1 52. Kc3 Kg6 53. Kc2 Ne2 54. Kd3 Nc1+ 55. Kc2 Ne2 56. Kd3 Nf4+ 57. Kc4 Kf6 58. g3 Ne2 { Tal's lead was reduced to 5-4. He had learned his lesson
and played more seriously in the next games. } 0-1
[Event "Wch23"]
[Site "Moscow"]
[Date "1960.??.??"]
[Round "11"]
[White "Tal, Mikhail"]
[Black "Botvinnik, Mikhail"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "D78"]
[EventDate "1960.??.??"]
[PlyCount "143"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c6 6. b3 { Tal plays a prophylactic opening. } 6... Ne4 7. d4 d5 8. Bb2 Be6 9. Nbd2 Nxd2 10. Qxd2 Na6 11. Rac1 Qd6 12. Ne5 Rfd8 13. Rfd1 Rac8 14. Qa5 dxc4 15. Nxc4 Qc7 16. Qe1 Qb8 17. e4 { He occupies the centre with pawns. } 17... Bxc4 18. Rxc4 Nc7 19. Bh3 e6 20. Bc1 Qa8 21. Bg5 Re8 22. Qd2 f5 $1 23. Bh6 Bxh6 24. Qxh6 Re7 25. Re1 Rf8 26. Rc5 Qd8 27. Re5 $1 Ref7 $1 ( { Botvinnik does not like } 27... Qxd4 28. exf5 gxf5 29. Bxf5 ) 28. Qd2 Qd6 29. Bf1 Rd7 30. exf5 Rxf5 31. R5e4 Rf6 $2 ( 31... Rd5 $1 32. Bc4 Rxd4 33. Rxd4 Qxd4 34. Qxd4 Rxd4 35. Bxe6+ Nxe6 36. Rxe6 { draws (Tal). } ) 32. h4 Kg7 33. h5 gxh5 34. Rh4 Kg8 35. Bd3 Rg7 36. Re5 Rff7 37. Qh6 Qe7 38. Rexh5 Nd5 39. Qd2 Nf6 40. Rh6 Qd6 41. Rf4 Qf8 $2 ( { The attack is stopped by } 41... e5 42. dxe5 Qxe5 ) 42. Qe3 Nd5 43. Rxf7 Qxf7 44. Qe5 Nc7 45. Qc5 Qf3 { Tal decides the game with a nice combination. } 46. Bxh7+ $1 Rxh7 47. Qg5+ Kh8 48. Qd8+ Kg7 49. Rxh7+ Kxh7 50. Qxc7+ Kg6 51. Qxb7 Qe4 52. Qa6 Qe1+ 53. Kg2 Qe4+ 54. Kf1 Qb1+ 55. Ke2 Qc2+ 56. Kf3 Qf5+ 57. Ke3 Qg5+ 58. Ke2 Qh5+ 59. Kd2 Kf6 60. Qxc6 Qa5+ 61. Qc3 Qxa2+ 62. Ke3 Kf7 63. d5 exd5 64. Qc7+ Kf6 65. Qc6+ Ke7 66. Qxd5 Qa1 67. Qe4+ Kf7 68. Kf4 Qc1+ 69. Kg4 Qa1 70. Qd5+ Kf8 71. Kf5 Qb1+ 72. Kf6 { Tal won the endgame elegantly. } 1-0
[Event "Wch23"]
[Site "Moscow"]
[Date "1960.??.??"]
[Round "17"]
[White "Tal, Mikhail"]
[Black "Botvinnik, Mikhail"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "B18"]
[EventDate "1960.??.??"]
[PlyCount "81"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Bc4 e6 7. N1e2 Nf6 8. Nf4 Bd6 9. Nxg6 hxg6 10. Bg5 Nbd7 11. O-O Qa5 12. f4 O-O-O 13. a3 Qc7 14. b4 Nb6 15. Be2 Be7 16. Qd3 Nfd5 17. Bxe7 Qxe7 18. c4 Nf6 19. Rab1 Qd7 20. Rbd1 Kb8 21. Qb3 Qc7 22. a4 Rh4 23. a5 Nc8 24. Qe3 Ne7 25. Qe5 Rhh8 26. b5 cxb5 27. Qxb5 a6 28. Qb2 Rd7 29. c5 Ka8 30. Bf3 Nc6 31. Bxc6 Qxc6 32. Rf3 Qa4 33. Rfd3 Rc8 34. Rb1 Qxa5 $6 35. Rb3 Qc7 36. Qa3 $6 Ka7 37. Rb6 Qxf4 38. Ne2 Qe4 39. Qb3 { Botvinnik has little time left. } 39... Qd5 $4 ( { Correct is } 39... Ka8 $1 { Now } 40. c6 $2 { is refuted by } 40... Rxc6 41. Rxb7 Qxb1+ $1 42. Qxb1 Rxb7 ) 40. Rxa6+ $1 Kb8 41. Qa4 { This defeat broke the resistance of Botvinnik. Tal won the
match with 12 1/2 - 8 1/2 (+6, =13, -2). He gained the worls title in May 1960.
The new champion was incredibly popular. } 1-0
[Event "Wch24"]
[Site "Moscow"]
[Date "1961.??.??"]
[Round "7"]
[White "Botvinnik, Mikhail"]
[Black "Tal, Mikhail"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "E24"]
[EventDate "1961.??.??"]
[PlyCount "65"]

{ Botvinnik had the doubtful right of a revenge. Tal made a terrible blunder
before the second match began. He disregarded his kidneys' problems. as a
result, the quality of his play in the Estraden Theatre was uneven. } 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. a3 Bxc3+ 5. bxc3 b6 6. f3 Ba6 7. e4 d5 8. cxd5 Bxf1 9. Kxf1 exd5 10. Bg5 h6 11. Qa4+ c6 12. Bh4 dxe4 13. Re1 $1 { Botvinnik seeks the struggle. } 13... g5 14. Bf2 Qe7 15. Ne2 b5 16. Qc2 Qxa3 $5 17. h4 $1 gxh4 $6 ( { Better is } 17... g4 $5 18. Ng3 Nbd7 ) 18. Bxh4 Nbd7 19. Ng3 O-O-O $2 { Tal fails tactically. } ( { Sufficient counteraction gives } 19... e3 $1 20. Rxe3+ Kf8 21. Nf5 Nd5 ) 20. Nxe4 Rhe8 ( { Matter loses } 20... Nxe4 21. Qxe4 ) 21. Kf2 $1 Nxe4+ 22. fxe4 f6 23. Ra1 Qe7 24. Rxa7 Qxe4 25. Qxe4 $1 Rxe4 26. Ra8+ Nb8 27. Bg3 Kb7 28. Rha1 $1 Rc8 29. R8a7+ Kb6 30. Bxb8 b4 31. Bd6 bxc3 32. Bc5+ Kb5 33. R1a4 { Tactical superiority by Botvinnik did not occur in 1960. } 1-0
[Event "Wch24"]
[Site "Moscow"]
[Date "1961.??.??"]
[Round "11"]
[White "Botvinnik, Mikhail"]
[Black "Tal, Mikhail"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "D14"]
[EventDate "1961.??.??"]
[PlyCount "84"]

1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. cxd5 cxd5 5. Nf3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Bb5 Bb4 ( { Usual is } 8... Nd7 9. Qa4 Rc8 ) 9. Ne5 Qa5 10. Bxc6+ bxc6 11. O-O Bxc3 $6 ( 11... c5 $1 12. Nc6 Qa6 { (Khalifman). } ) 12. bxc3 Qxc3 13. Qc1 Qxc1 14. Rfxc1 O-O ( 14... Nd7 $6 15. Rxc6 $1 Nxe5 16. Bxe5 f6 17. Bd6 { is unpleasant for Black. } ) 15. f3 h6 $6 ( 15... Nh5 16. Nxc6 Nxf4 17. exf4 Bd3 { exchanges. } ) 16. Nxc6 Rfe8 17. a4 Nd7 18. Bd6 { Tal drew simple positions in the first match. Noe he loses. } 18... Nb6 $2 { He sacrifices a pawn. } ( { Defensive chances gives } 18... f6 19. Rc3 Kf7 ) 19. Bc5 Bd3 $6 20. Nxa7 Rxa7 21. Bxb6 Ra6 22. a5 Bc4 23. Ra3 f6 24. e4 Kf7 25. Kf2 Raa8 26. Ke3 Reb8 27. Rac3 Rc8 28. g4 Rab8 29. h4 Rc6 30. h5 Rbc8 31. e5 g6 32. hxg6+ Kxg6 33. R3c2 fxe5 34. dxe5 Rh8 35. Rh2 Rcc8 36. Kd2 Bb3 37. a6 Bc4 38. a7 Rh7 39. Ra1 Ra8 40. Be3 Rb7 41. Rxh6+ Kg7 42. Rah1 Rb2+ 1-0
[Event "Wch24"]
[Site "Moscow"]
[Date "1961.??.??"]
[Round "12"]
[White "Tal, Mikhail"]
[Black "Botvinnik, Mikhail"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "C18"]
[EventDate "1961.??.??"]
[PlyCount "81"]

{ Sometimes Tal had a good day. Again he crushed Botvinnik in the Winawer
Variation. } 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 7. Qg4 f5 8. Qg3 Ne7 9. Qxg7 Rg8 10. Qxh7 cxd4 11. Kd1 Bd7 12. Qh5+ Kd8 $1 ( { Black diverts from } 12... Ng6 { in Tal-Botvinnik, Moscow 1960). } ) 13. Nf3 Qxc3 14. Ra2 $1 ( { Time loses } 14. Rb1 $6 Ba4 $1 ) 14... Nbc6 15. Rb2 $5 Kc7 16. Rb5 $1 Rh8 ( 16... Qa1 17. Rb2 { imprisons the queen (Tal). } ) 17. Qxh8 $5 { Tal takes a risk. } ( { The quiet } 17. Qg5 Rag8 18. Qd2 { equalises. } ) 17... Rxh8 18. Bb2 Qxf3+ $5 19. gxf3 Ng6 $6 ( { Equal chances keeps } 19... Rh4 $1 { (Botvinnik). } ) 20. h4 $1 Ngxe5 $5 ( { Unpleasant for Black is } 20... Rxh4 21. Rxh4 Nxh4 22. f4 { (Tal). } ) 21. h5 { The passed pawn becomes strong. } 21... Nf7 $2 ( { Maybe } 21... Nxf3 $1 22. Bc1 Nfe5 23. Bf4 Kc8 { will hold (Thomas). } ) 22. f4 Nd6 23. Rb3 Ne4 24. Ke1 Rh6 25. Be2 Be8 26. Rd3 Nf6 27. Bxd4 Nxd4 28. Rxd4 Bxh5 29. Rd3 Rh7 ( 29... Bxe2 30. Rc3+ $1 ) 30. Rdh3 Bg6 31. Rxh7+ Nxh7 32. Rh6 Nf8 33. Rh8 Nd7 34. Rg8 Bf7 35. Rg7 Be8 36. Re7 Kd8 37. Rxe6 Bf7 38. Rh6 Ke7 39. Bd3 Be6 40. Rh5 Nf6 41. Rg5 { Botvinnik won the match with 13-8 (+10, =6,
-5). He regained the world title for the second time in May 1961.  Tal did
poorly in the following candidates' tournament, Curacao 1962. He had to be
hospitalised before the contest was over.  The runner-up of the previous
candidates' tournament, Keres, was the only one, who defeated the healthy Tal.
A match between Keres and a fit Tal would have been more interesting than the
revenge of the old patriarch against the sickly Tal. } 1-0
[Event "Candidates' tournament"]
[Site "Curacao"]
[Date "1962.??.??"]
[Round "5"]
[White "Fischer, Bobby"]
[Black "Korchnoi, Viktor"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "B09"]
[EventDate "1962.??.??"]
[PlyCount "66"]

{ Fischer had won Stockholm 1962, the interzonal tournament. Matters would be
different in hot Willemstad. The 'Russians' took care of the optimistic Bobby. } 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be2 c5 7. dxc5 Qa5 8. O-O Qxc5+ 9. Kh1 Nc6 10. Nd2 a5 11. a4 Nb4 12. Nb3 Qb6 { Was the next move an oversight or a provocation? } 13. g4 $2 ( { Correct is } 13. f5 d5 { (Zurakhov-Savon, Kiev 1960). } ) 13... Bxg4 $1 14. Bxg4 Nxg4 15. Qxg4 Nxc2 16. Nb5 Nxa1 17. Nxa1 Qc6 18. f5 Qc4 19. Qf3 Qxa4 20. Nc7 Qxa1 { Korchnoi grabs anything. } 21. Nd5 $6 ( { Little better is } 21. Nxa8 Rxa8 22. fxg6 fxg6 ) 21... Rae8 22. Bg5 Qxb2 23. Bxe7 Be5 24. Rf2 Qc1+ 25. Rf1 Qh6 26. h3 gxf5 27. Bxf8 Rxf8 28. Ne7+ Kh8 29. Nxf5 Qe6 30. Rg1 a4 31. Rg4 Qb3 32. Qf1 a3 33. Rg3 Qxg3 0-1
[Event "Candidates' tournament"]
[Site "Curacao"]
[Date "1962.??.??"]
[Round "9"]
[White "Fischer, Bobby"]
[Black "Geller, Efim"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "B88"]
[EventDate "1962.??.??"]
[PlyCount "136"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Bb3 Be7 8. f4 O-O 9. Be3 Nxd4 10. Bxd4 b5 11. e5 dxe5 12. fxe5 Nd7 13. O-O Bc5 $1 ( { Geller diverts from } 13... b4 14. Ne4 { in Fischer-Olafsson, Stockholm 1962). } ) 14. Bxc5 Nxc5 15. Qxd8 Rxd8 16. Nxb5 Ba6 17. Bc4 Rab8 18. a4 Nxa4 $1 19. Nd6 ( 19. Rxa4 Bxb5 20. Bxb5 Rxb5 21. Rxa7 Rxb2 22. Rfxf7 Rd1+ $11 ) 19... Bxc4 20. Nxc4 Nxb2 21. Nd6 $5 Rd7 22. Rfb1 Rc7 23. h3 $2 ( 23. Ra2 $1 Rxc2 24. Rxa7 { still draws. } ) 23... Rb6 24. c4 h6 25. Nb5 Rc5 26. Rxb2 a6 27. Rf2 axb5 28. Ra7 Rxe5 29. Rfxf7 Rg5 30. Rfb7 Rxb7 31. Rxb7 bxc4 32. Rc7 Rf5 33. Rxc4 Kf7 34. g4 $6 ( { More prudent is } 34. g3 ) 34... Rf3 35. Kg2 Rd3 36. Rc7+ Kf6 37. h4 Ra3 38. Rb7 Rc3 39. g5+ hxg5 40. hxg5+ Kg6 41. Re7 Re3 42. Kf2 $2 { "I'll draw that
game with my eyes shut!" Bobby told the press. Geller and Boleslavsky analyse
the adjourned position again. } ( { Fischer misses the brilliant escape } 42. Kh2 $3 Re5 43. Kh3 $1 ) 42... Re5 43. Kf3 Rf5+ 44. Ke3 ( { The first pointe is } 44. Ke4 Rf7 $1 ( 44... e5 $4 45. Rxg7+ ) 45. Rxe6+ Kxg5 { and Black has a theoretical win. } ) 44... e5 $1 45. Ke4 Rxg5 46. Re8 Rg1 $1 47. Kf3 ( { The second point is } 47. Re6+ Kf7 48. Rxe5 Re1+ 49. Kf5 Rxe5+ 50. Kxe5 Kg6 51. Kf4 Kh5 $19 ) 47... Rf1+ 48. Kg3 Rf5 49. Rb8 Kg5 50. Re8 Kf6 51. Rf8+ Ke6 52. Re8+ Kf6 53. Rf8+ Ke6 54. Re8+ Kd5 55. Ra8 Rf7 56. Kg4 Re7 57. Ra5+ Ke6 58. Ra6+ Kf7 59. Kf3 Re6 60. Ra8 e4+ 61. Ke3 g5 62. Ra1 Kg6 63. Rb1 Re5 64. Kd4 Kf6 65. Re1 Ra5 $1 66. Rxe4 Kf5 $1 67. Re8 Kg4 68. Ke3 Kg3 0-1
[Event "Candidates' tournament"]
[Site "Curacao"]
[Date "1962.??.??"]
[Round "13"]
[White "Fischer, Bobby"]
[Black "Petrosian, Tigran"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "C12"]
[EventDate "1962.??.??"]
[PlyCount "85"]

{ A great prophylactic player was Tigran Petrosian. Slow strangulation was his
speciality. The ideas of Nimzowitsch had a great influence on him, but he
played more prudently. He participated in many candidates' tournaments. A
great success became the match tournament Curacao 1962. } 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 $5 5. e5 h6 6. Bd2 Bxc3 7. Bxc3 $5 ( { Theory is } 7. bxc3 Ne4 8. Qg4 $1 ) 7... Ne4 8. Ba5 $6 O-O $1 9. Bd3 Nc6 10. Bc3 Nxc3 11. bxc3 f6 { Black has an easy game. } 12. f4 fxe5 13. fxe5 Ne7 $1 14. Nf3 c5 15. O-O Qa5 16. Qe1 Bd7 17. c4 $1 Qxe1 18. Rfxe1 dxc4 19. Be4 $6 ( 19. Bxc4 b5 20. Bd3 Rac8 21. Be4 { draws easier. } ) 19... cxd4 20. Bxb7 Rab8 21. Ba6 Rb4 22. Rad1 d3 $1 ( { No winning chance gives } 22... Ra4 23. Rxd4 $1 ) 23. cxd3 cxd3 24. Rxd3 Bc6 25. Rd4 Rxd4 26. Nxd4 Bd5 { Fischer has to protect weak pawns. } 27. a4 $2 ( { White narrowly escapes in } 27. Bd3 $1 Bxa2 28. Ra1 Rd8 29. Rxa2 Rxd4 30. Rxa7 Nc6 31. Ra6 Rxd3 32. Rxc6 Kf7 33. Rc7+ Kg6 34. Re7 ) 27... Rf4 $1 28. Rd1 Ng6 29. Bc8 Kf7 30. a5 Nxe5 31. a6 Rg4 32. Rd2 Nc4 33. Rf2+ Ke7 34. Nb5 Nd6 35. Nxd6 ( 35. Nxa7 Rc4 36. Bb7 Nxb7 37. axb7 Bxb7 ) 35... Kxd6 36. Bb7 Bxb7 37. axb7 Kc7 38. h3 Rg5 39. Rb2 Kb8 40. Kf2 Rd5 41. Ke3 Rd7 42. Ke4 Rxb7 43. Rf2 { Geller, Keres and Petrosian quickly drew among each others. Fischer was their
prey. Bobby complained: "The Russians have fixed world chess!" FIDE decided to
organise candidates' matches next time. } 0-1
[Event "Candidates' tournament"]
[Site "Curacao"]
[Date "1962.??.??"]
[Round "23"]
[White "Petrosian, Tigran"]
[Black "Korchnoi, Viktor"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "A31"]
[EventDate "1962.??.??"]
[PlyCount "41"]

1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 d5 6. Bg5 dxc4 7. e3 Qa5 $2 ( { Correct is } 7... Bg7 8. Bxc4 O-O { (Smyslov-Korchnoi, Moscow 1952). } ) 8. Bxf6 $1 exf6 9. Bxc4 Bb4 10. Rc1 a6 $6 11. O-O Nd7 12. a3 Be7 13. b4 $1 Qe5 ( 13... Qxa3 { is punished by } 14. Nd5 $1 ) 14. f4 $1 Qb8 ( { The pointe is } 14... Qxe3+ 15. Kh1 Nb6 16. Rf3 { (Suetin). } ) 15. Bxf7+ $1 { The Tiger jumps for a killing. } 15... Kxf7 16. Qb3+ Ke8 ( { Even worse is } 16... Kg7 17. Ne6+ Kh6 18. Rf3 { (Horowitz). } ) 17. Nd5 Bd6 18. Ne6 b5 19. Ndc7+ Ke7 20. Nd4 Kf8 21. Nxa8 { Korchnoi became a
victim during the second half of the tournament.  Tigran survived as the
smartest in the heat of Willemstad. He saved his strength and scored 17 1/2 /
27 (+8, =19) half-a-point more than Keres and Geller. They had to play a match
for second place. } 1-0
[Event "Playoff for place 2 of candidates"]
[Site "Moscow"]
[Date "1962.??.??"]
[Round "8"]
[White "Keres, Paul"]
[Black "Geller, Efim"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "D41"]
[EventDate "1962.??.??"]
[PlyCount "55"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bc4 Nxc3 8. bxc3 Be7 9. O-O O-O 10. e4 b6 11. Bb2 Bb7 12. Qe2 Na5 13. Bd3 Rc8 14. Rad1 cxd4 15. cxd4 Bb4 $6 ( { Right is } 15... Qd6 $1 16. d5 $1 exd5 17. exd5 Bxd5 18. Rfe1 Rfe8 19. Be5 Qh6 20. Bxh7+ Qxh7 21. Rxd5 $11 ) 16. d5 $1 exd5 17. exd5 Qe7 $2 ( { Correct is } 17... Re8 18. Ne5 Qh4 ) 18. Ne5 f6 19. Qh5 g6 20. Nxg6 $1 { Keres decides the game and match. } 20... hxg6 21. Bxg6 Qg7 22. Rd3 Bd6 23. f4 $1 Qh8 24. Qg4 Bc5+ 25. Kh1 Rc7 26. Bh7+ Kf7 27. Qe6+ Kg7 28. Rg3+ { Keres won t
he match with 4 1/2 - 3 1/2 (+2, =5, -1) and qualified for the candidates'
matches in 1965. } 1-0
[Event "Wch25"]
[Site "Moscow"]
[Date "1963.??.??"]
[Round "5"]
[White "Petrosian, Tigran"]
[Black "Botvinnik, Mikhail"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "D94"]
[EventDate "1963.??.??"]
[PlyCount "95"]

{ Petrosian played Botvinnik for the world championship in 1963. He gave
lessons in endgame strategy. The Estraden Theatre was sold out each time. } 1. c4 g6 2. d4 Nf6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Be2 dxc4 7. Bxc4 c5 8. d5 e6 9. dxe6 Qxd1+ 10. Kxd1 Bxe6 11. Bxe6 fxe6 { The endgame has been reached. } 12. Ke2 Nc6 13. Rd1 Rad8 ( 13... h6 $1 { achieves a plus. } ) 14. Rxd8 Rxd8 15. Ng5 Re8 16. Nge4 Nxe4 17. Nxe4 b6 18. Rb1 Nb4 19. Bd2 $1 Nd5 ( 19... Nxa2 $2 20. Ra1 Nb4 21. Bxb4 cxb4 22. Rxa7 Bxb2 23. Rb7 { favours White (Petrosian). } ) 20. a4 Rc8 21. b3 Bf8 22. Rc1 Be7 $6 23. b4 $1 c4 24. b5 $1 Kf7 $2 ( { Correct is } 24... Ba3 25. Rc2 c3 $1 26. Bxc3 Bb4 27. Kd2 Rc4 28. Bxb4 Rxe4 29. Bd6 Rxa4 { (Averbakh). } ) 25. Bc3 $1 Ba3 26. Rc2 Nxc3+ 27. Rxc3 Bb4 28. Rc2 Ke7 29. Nd2 $1 c3 30. Ne4 Ba5 31. Kd3 Rd8+ 32. Kc4 Rd1 33. Nxc3 Rh1 $6 { Exchange of minor pieces is better. } 34. Ne4 $1 Rxh2 35. Kd4 $1 { The centre has been conquered. } 35... Kd7 36. g3 Bb4 37. Ke5 Rh5+ 38. Kf6 Be7+ 39. Kg7 $1 e5 40. Rc6 $1 Rh1 41. Kf7 Ra1 42. Re6 $1 Bd8 43. Rd6+ Kc8 44. Ke8 $1 Bc7 45. Rc6 Rd1 ( 45... Rxa4 46. Nc3 { and 47.Nd5. } ) 46. Ng5 Rd8+ 47. Kf7 Rd7+ 48. Kg8 { The first lesson showed the centre strategy. } 1-0
[Event "Wch25"]
[Site "Moscow"]
[Date "1963.??.??"]
[Round "8"]
[White "Botvinnik, Mikhail"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[Annotator "JvR"]
[ECO "D27"]
[EventDate "1963.??.??"]
[PlyCount "109"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. a4 Nc6 8. Qe2 Be7 9. dxc5 Bxc5 10. e4 Ng4 11. e5 $1 { Botvinnik plays a novelty, but his opponent is prepared. } 11... Nd4 12. Nxd4 Qxd4 13. Na3 $1 Bxa3 $1 14. Rxa3 Nxe5 15. b3 $1 ( { Less dangerous is } 15. Rd1 Qg4 $1 ) 15... Qc5 $1 { Petrosian defends well. } ( { An attack concedes } 15... Nxc4 16. bxc4 O-O 17. Rg3 g6 18. Rd1 ) 16. Ra2 $5 ( { White keeps the initiative in } 16. Bb2 $1 f6 $1 17. Qh5+ g6 18. Qh6 Bd7 ) 16... Nxc4 17. bxc4 Bd7 18. Ba3 Qf5 19. Rd2 Bc6 ( 19... Bxa4 { allows } 20. Rd5 ) 20. Re1 h5 21. Qe3 f6 $5 22. Qxe6+ { Botvinnik offers a draw. } 22... Qxe6 23. Rxe6+ Kf7 24. Re7+ Kg6 25. a5 Rad8 26. Bd6 Rhe8 27. Rxe8 Rxe8 28. f3 Re1+ 29. Kf2 Ra1 30. Bb4 Rb1 31. Ba3 Rb3 32. Bd6 Rc3 33. Rd4 Rc2+ 34. Kg3 Bd7 35. h4 Be6 36. c5 Bc4 37. Kf4 Bb5 38. g4 $6 ( 38. g3 { keeps equality. } ) 38... Rc3 39. Re4 Bc6 40. Re3 Rc4+ 41. Kg3 Ra4 42. Bc7 hxg4 43. fxg4 Bd7 44. Bf4 Kf7 45. Rb3 Bc8 46. g5 fxg5 47. hxg5 Rxa5 48. Be3 Kg6 49. Rb6+ Kf5 50. c6 bxc6 51. Rxc6 Ra3 52. Rc5+ Kg6 53. Rc6+ Kh5 54. Kf4 Ra4+ 55. Kg3 1/2-1/2
[Event "Wch25"]
[Site "Moscow"]
[Date "1963.??.??"]
[Round "18"]
[White "Botvinnik, Mikhail"]
[Black "Petrosian, Tigran"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "D31"]
[EventDate "1963.??.??"]
[PlyCount "122"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. cxd5 exd5 5. Bf4 c6 6. e3 Bf5 7. g4 Be6 8. h3 Nf6 9. Nf3 Nbd7 10. Bd3 Nb6 11. Qc2 Nc4 12. Kf1 Nd6 13. Nd2 Qc8 14. Kg2 Nd7 15. f3 g6 16. Rac1 Nb6 17. b3 Qd7 18. Ne2 Ndc8 19. a4 a5 20. Bg3 Bd6 21. Nf4 Ne7 22. Nf1 h5 23. Be2 h4 24. Bh2 g5 25. Nd3 Qc7 26. Qd2 Nd7 27. Bg1 Ng6 28. Bh2 Ne7 29. Bd1 b6 30. Kg1 f6 31. e4 Bxh2+ 32. Qxh2 Qxh2+ 33. Rxh2 Rd8 34. Kf2 Kf7 35. Ke3 Rhe8 36. Rd2 Kg7 37. Kf2 dxe4 38. fxe4 Nf8 39. Ne1 Nfg6 40. Ng2 Rd7 { Black pressures on the isolated pawn. } 41. Bc2 $1 Bf7 $1 42. Nfe3 c5 $1 43. d5 Ne5 44. Rf1 $2 ( { Correct is } 44. Nc4 $1 Nxc4 45. bxc4 Bg6 46. Ne3 Nc8 47. Nf5+ Bxf5 48. exf5 Rde7 { Analysts regard this position as lost for White, but } 49. Bd3 Re3 50. Re2 $1 { draws. } ) 44... Bg6 45. Ke1 Nc8 46. Rdf2 Rf7 47. Kd2 Nd6 { Two knights blockade the centre. } 48. Nf5+ Bxf5 49. exf5 c4 $1 50. Rb1 b5 $1 51. b4 c3+ $1 52. Kxc3 Rc7+ 53. Kd2 Nec4+ 54. Kd1 Na3 55. Rb2 Ndc4 56. Ra2 axb4 57. axb5 Nxb5 58. Ra6 Nc3+ 59. Kc1 Nxd5 60. Ba4 Rec8 61. Ne1 Nf4 { Botvinnik got a lesson in prophylaxis. } 0-1
[Event "Wch25"]
[Site "Moscow"]
[Date "1963.??.??"]
[Round "19"]
[White "Petrosian, Tigran"]
[Black "Botvinnik, Mikhail"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "E19"]
[EventDate "1963.??.??"]
[PlyCount "131"]

{ Botvinnik learned about the battle in the centre in game five and about
prophylaxis in the previous game. This time the excercises are repeated. } 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. d4 Ne4 8. Qc2 Nxc3 9. Qxc3 f5 10. b3 Bf6 11. Bb2 d6 12. Rad1 Nd7 13. Ne1 Bxg2 14. Nxg2 Bg5 $6 15. Qc2 Bh6 16. e4 f4 17. Ne1 $1 Qe7 18. e5 $1 dxe5 19. dxe5 Rad8 20. Qe2 Qg5 $2 ( { Properly defends } 20... Nc5 $1 ) 21. Kg2 a5 22. Nf3 Qh5 23. Ba3 $1 Rfe8 24. Rd4 Nb8 25. Rfd1 Rxd4 26. Rxd4 fxg3 27. hxg3 Qf7 28. Qe4 $1 g6 29. Qb7 ( 29. Qh4 $1 Kg7 30. Rd1 $1 { and 31.Rh1 wins immediately. } ) 29... Bg7 30. c5 $1 bxc5 31. Bxc5 Nd7 32. Qxc7 Nxe5 33. Qxf7+ Nxf7 34. Ra4 Bc3 35. Rc4 ( 35. Bd4 $1 { wins a pawn. } ) 35... Bf6 36. Bb6 Ra8 37. Ra4 Bc3 38. Bd4 Bb4 39. a3 Bd6 40. b4 Bc7 41. Bc3 Kf8 42. b5 $1 { The styrategy changes from battle for weaknesses to restriction. } 42... Ke8 ( { The subtle } 42... Nd6 $1 43. Bb4 $1 Ke7 44. Bc5 $1 Rb8 45. Rh4 $1 h5 ( 45... Rxb5 $2 46. Rxh7+ Kd8 47. Nd4 $1 ) 46. a4 { restricts elegantly. } ) 43. Rc4 $1 Kd7 44. a4 Rc8 45. Nd2 Nd6 46. Rd4 Ke7 47. Rd3 Nb7 48. Ne4 e5 49. Bb2 Bb6 50. Ba3+ Ke6 51. Ng5+ Kf5 52. Nxh7 e4 53. g4+ $6 ( { Better is } 53. Rd5+ $1 Ke6 54. Rg5 ) 53... Kf4 $6 { Capture gives counteraction. } 54. Rd7 Rc7 55. Rxc7 Bxc7 56. Nf6 Bd8 ( { More resistance offers } 56... Bd6 $1 57. Bc1+ Ke5 58. Bb2+ Kf4 59. Bd4 $1 Bc5 60. Bc3 Bd6 { but the combination } 61. Nd5+ $1 Kxg4 62. Ne3+ Kf4 63. Nc4 { decides. } ) 57. Nd7 Kxg4 58. b6 Bg5 ( { The game is prolonged by } 58... Kf5 $5 59. Nc5 Bxb6 60. Nxb7 e3 $1 61. fxe3 Bxe3 62. Nxa5 { (Petrosian). } ) 59. Nc5 Nxc5 60. Bxc5 Bf4 61. b7 Bb8 62. Be3 g5 63. Bd2 Kf5 64. Kh3 Bd6 ( 64... g4+ 65. Kh4 Ba7 66. Bxa5 $1 Bxf2+ 67. Kh5 Bg3 68. Bb6 ) 65. Bxa5 g4+ 66. Kg2 { Petrosian won the
match with 12 1/2 - 9 1/2 (+5, =15, -2) in May 1963. A big crowd waite for him
in Yerevan. It took some time until the timid world champion dared to leave
the plane.  Botvinnik had been stripped of his right for a return match. He
left the battle for the world title. } 1-0
[Event "Quarter final"]
[Site "Riga"]
[Date "1965.??.??"]
[Round "1"]
[White "Spassky, Boris"]
[Black "Keres, Paul"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "E12"]
[EventDate "1965.??.??"]
[PlyCount "66"]

{ The cautious attacker, Boris Spassky, had participated in the candidates'
tournament, Amsterdam 1956. Thereafter, he failed to qualify twice. When he
started in the next cycle, he began in the semi-final of the Soviet
championship of 1963. The following exams were Leningrad 1963, Moscow 1964 and
Amsterdam 1964. He passed the tests with difficulty. When the lots for the
candidates' matches were drawn, he got the strongest player, Paul Keres. } 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 h6 6. Bh4 Be7 7. e3 Ne4 8. Bxe7 Qxe7 9. Nxe4 Bxe4 10. Be2 Qb4+ $5 11. Nd2 $5 Bxg2 12. Rg1 Bb7 13. Rxg7 Nc6 ( { The risky } 13... Kf8 14. Rg3 Qxb2 { would start a heroic defence by Black. } ) 14. c5 $6 ( 14. Qc2 Qf8 15. Rg3 { gains a plus. } ) 14... bxc5 15. a3 Qa5 16. b4 $5 cxb4 17. Nb3 Qa4 18. axb4 $2 { Now Spassky gambles like Tal and Keres deals with it. } ( { After the exchanges in } 18. Nc5 $1 Qxd1+ 19. Kxd1 Bc8 20. Bh5 Rf8 21. Bf3 d5 22. axb4 Nxb4 23. Kd2 { White has a lot of pressure for two pawns. } ) 18... Qxb4+ 19. Kf1 Qf8 20. Rg3 Ne7 21. Nc5 Bc6 22. e4 Rg8 23. Raa3 Rxg3 24. Rxg3 Rb8 25. d5 $6 exd5 26. Qa1 dxe4 27. Bh5 Rb5 28. Qd4 Ng6 29. Bxg6 fxg6 30. Nxe4 Rb1+ 31. Ke2 Rb4 32. Nf6+ Kd8 33. Qa1 Qc5 0-1
[Event "Quarter final"]
[Site "Riga"]
[Date "1965.??.??"]
[Round "4"]
[White "Keres, Paul"]
[Black "Spassky, Boris"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "C93"]
[EventDate "1965.??.??"]
[PlyCount "77"]

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. Nf1 Bd7 13. dxe5 Nxe5 14. Nxe5 dxe5 15. Qf3 c5 16. Rd1 c4 17. Bc2 Qe7 18. b3 cxb3 $5 19. axb3 Rec8 20. Bb2 a5 $1 { Black takes the initiative on the queenside. } 21. Ne3 a4 22. bxa4 bxa4 23. c4 ( 23. Ba3 $1 Qxa3 $5 24. Rxa3 Bxa3 { sharpens the struggle (Tal). } ) 23... a3 24. Bc3 Ba4 25. Bxa4 Rxa4 26. Rdb1 $2 ( { White can consolidate by } 26. Qf5 Re8 { (Bondarevsky) } 27. Ra2 ) 26... Qe6 27. Qd1 { Rook a4 is under attack, but Boris does not bother. } 27... Nxe4 $1 28. Bxe5 Qxe5 29. Qxa4 Nc3 30. Qc2 Nxb1 31. Rxb1 Ra8 32. Qa2 Bc5 33. Rb5 Rb8 34. Rxb8+ Qxb8 35. Nd5 Qg3 36. Kf1 Qd3+ 37. Ke1 Qd4 $1 { Black threatens Qxf2+. } 38. Qb3 Qxf2+ 39. Kd1 0-1
[Event "Quarter final"]
[Site "Riga"]
[Date "1965.??.??"]
[Round "5"]
[White "Spassky, Boris"]
[Black "Keres, Paul"]
[Result "1-0"]
[Annotator "JvR"]
[ECO "C99"]
[EventDate "1965.??.??"]
[PlyCount "85"]

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 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Bd7 13. Nf1 cxd4 14. cxd4 Rac8 15. Ne3 Rfe8 16. b3 exd4 $5 { Keres accepts a weakness for counteraction in the centre. } 17. Nxd4 Bf8 18. Bb2 Qd8 19. Ndf5 ( { An attack starts } 19. Qf3 $1 Nc6 20. Nxc6 Bxc6 21. Nf5 ) 19... Bxf5 20. Nxf5 g6 21. Ne3 Bg7 22. Qd2 Nb7 $6 ( 22... Nc6 { gives the knight a better position. } ) 23. b4 { Now it is time for counter-play! } 23... Qe7 $2 ( { Action takes } 23... Nxe4 24. Bxe4 Rxe4 25. Nd5 Bxb2 26. Qxb2 Re6 $1 ) 24. f3 Qf8 $6 ( 24... Nd8 25. Rad1 Nc6 26. Bb3 Red8 { reorganises in time. } ) 25. Bb3 Nd8 26. Rad1 Rc6 27. Rc1 Qe7 28. Kh2 Qd7 29. Nd5 Nxd5 30. Bxd5 Rxc1 31. Rxc1 Qe7 32. Bxg7 Kxg7 33. Qc3+ Kg8 34. f4 Ne6 35. g3 Ng7 36. Qc7 Qf6 37. Rc2 Rf8 38. Qb6 g5 39. fxg5 Qxg5 40. Qxa6 Qe5 41. Qxb5 Ne6 42. Qf1 Kg7 43. Qf5 1-0
[Event "Quarter final"]
[Site "Riga"]
[Date "1965.??.??"]
[Round "10"]
[White "Keres, Paul"]
[Black "Spassky, Boris"]
[Result "0-1"]
[Annotator "JvR"]
[ECO "A68"]
[EventDate "1965.??.??"]
[PlyCount "70"]

{ Spassky led by 5-4, when the last game started. } 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. cxd5 b5 $5 10. e5 { Both players seek complications. Keres needs a win and Boris wants to avoid
Paul's endgame technics. } 10... dxe5 11. fxe5 Ng4 12. Bf4 $1 Nd7 13. e6 fxe6 14. dxe6 Rxf4 $5 15. Qd5 $1 Kh8 16. Qxa8 Nb6 17. Qxa7 Bxe6 { Black has given matter for time. } 18. O-O Ne3 19. Rf2 b4 { The decisive moment of the match has been reached. } 20. Nb5 $2 ( { A better endgame achieves } 20. Nd1 $1 Ng4 $1 21. Ng5 $1 Rxf2 $1 22. Nxf2 $1 ( 22. Nxe6 $2 Rxg2+ 23. Kxg2 Qd5+ 24. Kg3 Qe5+ $1 25. Nf4 g5 26. Kxg4 Qxf4+ 27. Kh3 Be5 28. Kg2 { and a perpetual } ) 22... Qxg5 23. Bxg4 { (Bartis-Szemeta, Argentina 1970) } 23... Bxg4 24. Nxg4 Qxg4 25. Qxb6 Bxb2 26. Rf1 ) 20... Rf7 $1 21. Qa5 Qb8 22. Re1 Bd5 23. Bf1 $2 ( { Correctly defends } 23. Bd3 Nec4 24. Qa6 Nxb2 ) 23... Nxf1 24. Rfxf1 Nc4 25. Qa6 Rf6 26. Qa4 Nxb2 27. Qc2 $6 Qxb5 28. Re7 Nd3 29. Qe2 c4 30. Re8+ Rf8 31. Rxf8+ Bxf8 32. Ng5 Bc5+ 33. Kh1 Qd7 34. Qd2 Qe7 35. Nf3 Qe3 { Spassky had won the match by 6-4 (+4, =4, -2).
Keres ended his battle for the title. Boris continued and defeated Geller in
the semifinal and Tal in the final. } 0-1