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descriptionAlekhine-Botvinnik match simulation EmptyAlekhine-Botvinnik match simulation

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1. game. Nimzo-indian defence. "He played gigantic conceptions, full of outrageous and unprecedented ideas" - said Fischer about Alekhine's style of play. The simulation is not perfect, nonetheless the play in this game confirms his words.

[pgn][Event "Alekhine-Botvinnik match"]
[Site "?"]
[Date "2021.11.29"]
[Round "1"]
[White "Alekhine, Comp"]
[Black "Botvinnik, Comp"]
[Result "1-0"]
[ECO "E34"]
[PlyCount "103"]
[EventDate "2021.??.??"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5
5. cxd5 Qxd5 6. e3 c5 7. a3 Bxc3+ 8. bxc3 O-O 9. Nf3 cxd4 10. cxd4 b6 11. Bc4
Qc6 12. Bd2 Ba6 13. Rc1 Rc8 14. Bxa6 Qxc2 15. Bxc8 Qe4 16. O-O Nbd7 17. Rc7 Nd5
18. Bb7 Rd8 19. Rfc1 f6 20. Bb4 Nf8 21. Nd2 Qd3 22. Bxd5 exd5 23. Rxa7 Re8 24.
h3 h5 25. Nf3 Ne6 26. Be7 b5 27. h4 Qe2 28. Rc6 Nf4 29. Bxf6 gxf6 30. exf4 Re7
31. Raa6 Rf7 32. Rxf6 Rxf6 33. Rxf6 Qd1+ 34. Kh2 Qc1 35. Rf5 Qxa3 36. Rg5+ Kf7
37. Rxh5 Qc1 38. Ne5+ Kf6 39. Ng4+ Kf7 40. Rf5+ Kg8 41. Rg5+ Kh8 42. f5 b4 43.
f6 Qf4+ 44. g3 Qf3 45. Kg1 b3 46. Rh5+ Kg8 47. f7+ Kg7 48. Rg5+ Kh7 49. Ne5 Qf6
50. Rg6 b2 51. Rxf6 b1=Q+ 52. Kg2 1-0
[/pgn]

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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hi Jaglo , how is this simulation done?... what program do you do this with?... nice game no doubt at all...

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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In this case:

1. I retrospectively added the ELO rankings of players from before 1971 to the database. I'm taking games played by Alekhine with white pieces against players with rankings above 2450. The same for Botvinnik, but when he played with black sided.

2. I create a book of openings based on selected games for white (Alekhine) and another for black (Botvinnik).

3. I assume that the beginning of the game will follow both books. I use the programs Fritz and CBLight to have both books open at the same time. I choose variants for several games based on frequencies and results. Sometimes it is difficult, e.g. half of his games Botvinnik started with 1 c4, while Alekhine played only 4 such games with black.

4. I select a few representative games played by grandmasters (about 10) and create a test from them. I then check various programs and neural networks (in the case of LC0) to find the one that best emulates the given grandmaster. This is what I did with Karpov, Fischer, Morphy, and Steinitz. If you skip the initial moves, you can achieve about 80% accuracy. The best results can be achieved using FatTitz and LC0 hanse. In some positions, many of the moves have an equal score. A Maia-style network trained on a specific player's decision would be useful. Unfortunately I am not able to prepare it myself. I don't have Linux.

5. When I run out of player book moves, I use the Hiarcs opening book and chess engines. I take into account the results of both engines. In Alekhine's case I give more weight to FatTitz results, in Botvinnik's case to LC0 results. In this way I "simulate" Alekhine's more tactical style and Botvinnik's more positional style.

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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2. game. English Opening. 30 Nxc6! and interesting trap for a bishop.

[pgn][Event "Alekhine-Botvinnik match"]
[Site "?"]
[Date "2021.11.30"]
[Round "2"]
[White "Botvinnik, Comp"]
[Black "Alekhine, Comp"]
[Result "1/2-1/2"]
[ECO "A29"]
[PlyCount "107"]
[EventDate "2021.??.??"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4
5. Bg2 O-O 6. Nd5 e4 7. Nh4 d6 8. Nxb4 Nxb4 9. a3 Nc6 10. d3 d5 11. O-O exd3
12. exd3 Re8 13. Nf3 dxc4 14. dxc4 Qxd1 15. Rxd1 Na5 16. Nd4 Nxc4 17. b3 Ne5
18. f4 Ng6 19. f5 Nf8 20. Bg5 Bd7 21. Bxf6 gxf6 22. Rac1 c6 23. Kf2 Re5 24. g4
h5 25. h3 Rae8 26. b4 Re3 27. a4 a6 28. a5 hxg4 29. hxg4 Bc8 30. Nxc6 Re2+ 31.
Kf1 bxc6 32. Bxc6 R8e5 33. Rd8 Rb2 34. Rxc8 Rxb4 35. Rd1 Kg7 36. Rdd8 Nh7 37.
Bf3 Rb2 38. g5 fxg5 39. Rg8+ Kf6 40. Rc6+ Kxf5 41. Rg7 Rxa5 42. Rxf7+ Ke5 43.
Re7+ Kf4 44. Be2 g4 45. Rc4+ Kf5 46. Rxh7 Ra1+ 47. Kf2 g3+ 48. Ke3 Re1 49. Rh5+
Ke6 50. Re4+ Kf6 51. Kf3 g2 52. Kxg2 Rexe2+ 53. Rxe2 Rxe2+ 54. Kf3 1/2-1/2
[/pgn]

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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3. game. English Opening, symmetrical. Clash of titans.

[pgn][Event "Alekhine-Botvinnik match"]
[Site "?"]
[Date "2021.11.30"]
[Round "3"]
[White "Alekhine, Comp"]
[Black "Botvinnik, Comp"]
[Result "1/2-1/2"]
[ECO "A30"]
[PlyCount "116"]
[EventDate "2021.??.??"]

1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4.
Bg2 c5 5. O-O e6 6. c4 cxd4 7. Qxd4 Nc6 8. Qf4 Ne7 9. Qd2 Ng6 10. b3 Be7 11.
Bb2 O-O 12. Nc3 a6 13. Rfe1 Qc7 14. e4 Rad8 15. Rac1 Rfe8 16. Qe2 d6 17. Nd4
Qb8 18. Rcd1 h5 19. Rf1 Bf8 20. Rfe1 h4 21. a3 Qc8 22. Rc1 Qa8 23. b4 Be7 24.
Rcd1 Rc8 25. f4 Bf8 26. Nc2 b5 27. cxb5 axb5 28. Rd2 Be7 29. Nxb5 e5 30. f5 Nf8
31. gxh4 Ba6 32. a4 N8d7 33. Qe3 Qb7 34. Bf1 Nb6 35. Qb3 Red8 36. Rg2 Nxe4 37.
f6 Bxf6 38. Ne3 Kf8 39. a5 d5 40. axb6 Qxb6 41. Nc3 Nxc3 42. Bxa6 Bxh4 43. Rf1
Qxe3+ 44. Kh1 Rc7 45. b5 Be7 46. b6 Rc6 47. b7 Qb6 48. Qxb6 Rxb6 49. Bxc3 Rxa6
50. Bxe5 Rb6 51. Rb2 Rxb2 52. Bxb2 Rb8 53. Rb1 Bd6 54. Bd4 Ke7 55. Ba7 Rh8 56.
b8=Q Rxh2+ 57. Kg1 Bxb8 58. Bxb8 Rh8 1/2-1/2
[/pgn]

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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4. game. Nimzo-indian defence, Rubinstein system. Short and sharp.

[pgn][Event "Alekhine-Botvinnik match"]
[Site "?"]
[Date "2021.12.01"]
[Round "4"]
[White "Botvinnik, Comp"]
[Black "Alekhine, Comp"]
[Result "1/2-1/2"]
[ECO "E54"]
[PlyCount "59"]
[EventDate "2021.??.??"]

1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3
O-O 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 c5 8. O-O cxd4 9. exd4 b6 10. Bg5 Bb7 11. Ne5
h6 12. Bh4 Nbd7 13. Nxf7 Kxf7 14. Bxe6+ Kxe6 15. Qb3+ Kf5 16. Qc2+ Ke6 17. Qb3+
Kf5 18. Rfe1 Bxc3 19. Qc2+ Ne4 20. Bxd8 Bxe1 21. Rxe1 Raxd8 22. f3 Ndf6 23. Qc7
Kg6 24. Qxb7 Rd7 25. Qc6 Nd6 26. Qc2+ Kf7 27. Qb3+ Kg6 28. Qc2+ Kf7 29. Qb3+
Kg6 30. Qc2+ 1/2-1/2
[/pgn]

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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5. game. French defence.

[pgn][Event "Alekhine-Botvinnik match"]
[Site "?"]
[Date "2021.12.02"]
[Round "5"]
[White "Alekhine, Comp"]
[Black "Botvinnik, Comp"]
[Result "1-0"]
[ECO "C18"]
[PlyCount "155"]
[EventDate "2021.??.??"]

1. d4 e6 2. e4 d5 3. Nc3 Bb4 4. e5 c5 5.
a3 Bxc3+ 6. bxc3 Qc7 7. Qg4 f5 $2 (7... Ne7 $1 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Ne2
Nbc6 11. h4 $11) 8. Qg3 Ne7 9. Qxg7 Rg8 10. Qxh7 cxd4 11. Ne2 Nbc6 12. h4 Nxe5
13. Qh5+ Nf7 14. cxd4 Qxc2 15. Qf3 Bd7 16. h5 Rc8 17. Bd2 Ng5 18. Bxg5 Rxg5 19.
Rc1 Qb2 20. Rxc8+ Bxc8 21. Qe3 Qa1+ 22. Nc1 Rg4 23. f4 Rg8 24. Kf2 Qb2+ 25. Be2
Nc6 26. Nd3 Qxd4 27. Qxd4 Nxd4 28. h6 Rh8 29. Ne5 Nxe2 30. Kxe2 Rh7 31. Nf3 Ke7
32. Ng5 Rh8 33. Rc1 Bd7 34. h7 Bb5+ 35. Kd2 Kf6 36. Re1 Bd7 37. Kc3 b6 38. Kd4
a5 39. g3 Rd8 40. Rh1 Rh8 41. Rh6+ Kg7 42. Rh2 Kf6 43. Re2 Rd8 44. Re1 Rh8 45.
Rb1 e5+ 46. Kxd5 b5 47. Rh1 Be8 48. Rh6+ Bg6 49. Ne6 e4 50. Nf8 Rxf8 51. h8=Q+
Rxh8 52. Rxh8 b4 53. axb4 axb4 54. Kc4 b3 55. Kxb3 Kg7 56. Rh3 Be8 57. Kb4 Kg6
58. Rh8 Kf7 59. Kc3 Ba4 60. Kd2 Ke6 61. Rb8 Kf6 62. Rd8 Ke6 63. Rh8 Bb5 64.
Rh6+ Kf7 65. Rh5 Kg6 66. g4 Bd7 67. Rg5+ Kf6 68. gxf5 Bxf5 69. Ke3 Bg6 70. Ra5
Bh7 71. Kf2 Bg8 72. Ra4 Bh7 73. Ra6+ Kf5 74. Kg3 Bg6 75. Ra5+ Kf6 76. Kg4 Bf7
77. Rf5+ Kg6 78. Re5 1-0
[/pgn]

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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6. game. Semi-Slav Defense. Complicated game. Alekhine temporarily sacrificed the hetman. Botvinnik had a knight and a bishop advantage, but failed to win anyway.

[pgn][Event "Alekhine-Botvinnik match"]
[Site "?"]
[Date "2021.12.02"]
[Round "6"]
[White "Botvinnik, Comp"]
[Black "Alekhine, Comp"]
[Result "1/2-1/2"]
[ECO "D43"]
[PlyCount "134"]
[EventDate "2021.??.??"]

1. c4 Nf6 2. Nc3 e6 3. d4 d5 4. Nf3 c6
5. Bg5 h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. h4 g4 10. Ne5 Nbd7 11. Be2 Bb7 12.
Nxd7 Qxd7 13. Be5 Qe7 14. b3 Rg8 15. Qc2 Nd7 16. Bg3 b4 17. Na4 Bg7 18. Rd1 c3
19. a3 a5 20. O-O Bf6 21. Bc7 Bxh4 22. e5 Qg5 23. g3 Bxg3 24. fxg3 Qe3+ 25. Kg2
c5+ 26. d5 Rc8 27. Bd6 exd5 28. Rxf7 d4+ 29. Kh2 Be4 30. Re7+ Kd8 31. Bd3 Qxd3
32. Rxd3 Rg5 33. Kg1 Rh5 34. Rf7 Nxe5 35. Bxe5 Rh1+ 36. Kf2 Rh2+ 37. Ke1 Rxc2
38. Bf6+ Ke8 39. Re7+ Kf8 40. Rxe4 Rg2 41. Kd1 c2+ 42. Kc1 bxa3 43. Nc3 a4 44.
bxa4 Rb8 45. Nb5 a2 46. Ra3 Re8 47. Rxe8+ Kxe8 48. Rxa2 d3 49. Ra1 Rg1+ 50. Kd2
Rb1 51. Bb2 c1=Q+ 52. Bxc1 Rxa1 53. Ba3 h5 54. a5 Kd7 55. a6 Kc6 56. a7 Kb7 57.
Bxc5 h4 58. gxh4 g3 59. Nd6+ Ka8 60. Nb5 Kb7 61. Kxd3 Ra5 62. Kc4 g2 63. h5 Ra1
64. h6 Rc1+ 65. Nc3 g1=Q 66. Bxg1 Rxg1 67. h7 Rh1 1/2-1/2
[/pgn]

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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7. game. French defence.

[pgn][Event "Alekhine-Botvinnik match"]
[Site "?"]
[Date "2021.12.04"]
[Round "7"]
[White "Alekhine, Comp"]
[Black "Botvinnik, Comp"]
[Result "1/2-1/2"]
[ECO "C13"]
[PlyCount "64"]
[EventDate "2021.??.??"]

1. d4 e6 2. e4 d5 3. Nc3 Nf6 4. Bg5
dxe4 5. Nxe4 Nbd7 6. Nf3 h6 7. Bxf6 Nxf6 8. Bd3 Nxe4 9. Bxe4 c5 10. Qe2 Qa5+
11. c3 Be7 12. O-O cxd4 13. cxd4 O-O 14. Ne5 Bf6 15. Bc2 Rd8 16. Qe4 g6 17. Qf4
Bxe5 18. dxe5 Bd7 19. b4 Qb5 20. Rfe1 Bc6 21. Qxh6 Qd5 22. Be4 Qd2 23. Qxd2
Rxd2 24. Bxc6 bxc6 25. Re4 Rad8 26. h4 R8d4 27. Rxd4 Rxd4 28. a3 Rxh4 29. Rc1
a5 30. bxa5 Ra4 31. Rxc6 Rxa5 32. Rc3 Rxe5 1/2-1/2
[/pgn]

8. game. Semi-Slav Defense.

[pgn][Event "Alekhine-Botvinnik match"]
[Site "?"]
[Date "2021.12.04"]
[Round "8"]
[White "Botvinnik, Comp"]
[Black "Alekhine, Comp"]
[Result "1/2-1/2"]
[ECO "D47"]
[PlyCount "74"]
[EventDate "2021.??.??"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5.
Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. e4 b4 10. Na4 c5 11. e5 Nd5 12.
O-O cxd4 13. Re1 Be7 14. Nxd4 O-O 15. Qg4 Re8 16. Bh6 Bf8 17. Bg5 Qb8 18. Qg3
a6 19. Rac1 Qa7 20. Nf3 Rac8 21. b3 Bc6 22. Nb2 Bb5 23. Nc4 Nc3 24. Rc2 Nc5 25.
Be3 h6 26. Bf1 Bxc4 27. Bxc4 Kh8 28. Bd4 Qb7 29. Bxc3 Ne4 30. Bxa6 Qxa6 31.
Rxe4 Red8 32. Qf4 bxc3 33. h4 Rd1+ 34. Kh2 Qd3 35. Ree2 Ba3 36. Qe3 Bb2 37.
Qxd3 Rxd3 1/2-1/2
[/pgn]

9. game. Caro-Kann.

[pgn][Event "Alekhine-Botvinnik match"]
[Site "?"]
[Date "2021.12.06"]
[Round "9"]
[White "Alekhine, Comp"]
[Black "Botvinnik, Comp"]
[Result "1/2-1/2"]
[ECO "B14"]
[PlyCount "69"]
[EventDate "2021.??.??"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6
5. Nc3 g6 6. cxd5 Nxd5 7. Bc4 Nb6 8. Bb3 Bg7 9. Nf3 Nc6 10. O-O Na5 11. Re1
Nxb3 12. Qxb3 O-O 13. Bg5 Be6 14. Rxe6 fxe6 15. Re1 Qc7 16. Rxe6 Rf7 17. Bh4
Bf6 18. Bxf6 exf6 19. Rxf6 Kg7 20. Re6 Re7 21. h4 Rae8 22. Re5 Rxe5 23. Nxe5
Re7 24. a4 Qd6 25. Nf3 h6 26. g3 Qe6 27. Qb4 Nc4 28. d5 Qf6 29. d6 Nxd6 30. Nd5
Re4 31. Qxe4 Nxe4 32. Nxf6 Kxf6 33. a5 Nc5 34. Nd2 Nd3 35. b3 1/2-1/2
[/pgn]

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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10. game. Tarrasch defense.

[pgn][Event "Alekhine-Botvinnik match"]
[Site "?"]
[Date "2021.12.13"]
[Round "10"]
[White "Botvinnik, Comp"]
[Black "Alekhine, Comp"]
[Result "1/2-1/2"]
[ECO "A04"]
[PlyCount "69"]
[EventDate "2021.??.??"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 e6
5. Bg2 d5 6. cxd5 exd5 7. d4 Be7 8. O-O O-O 9. Bg5 c4 10. Ne5 Be6 11. f4 h6 12.
Bxf6 Bxf6 13. e3 Ne7 14. Qc2 Qb6 15. Qd2 Rab8 16. a4 Qc7 17. Rf2 a6 18. Raf1
Bxe5 19. dxe5 Qd7 20. a5 Rfd8 21. Qd4 b6 22. axb6 Nf5 23. Qd2 Rxb6 24. Rd1 Rdb8
25. g4 Nh4 26. f5 Rxb2 27. fxe6 fxe6 28. Qd4 Rxf2 29. Kxf2 Qf7+ 30. Kg3 Nxg2
31. Kxg2 Rf8 32. Qf4 Qg6 33. Qd4 a5 34. h3 Qf7 35. Qf4 1/2-1/2[/pgn]

1 2 3 4 5 6 7 8 9 10 Points
Alexander Alekhine 1 ½ ½ ½ 1 ½ ½ ½ ½ ½ 6
Mikhail Botvinnik 0 ½ ½ ½ 0 ½ ½ ½ ½ ½ 4

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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Kind of cool but Botwinnik was very methodical and studied his opponents in detail to learn about their strengths and weakness. But if we assume that the match would have occurred around 1945, maybe Alekhine would have had more chances as he was a more mature player. Still Botwinnik has his famous win against Capablanca in the simulation and it is well known that the Cuban World champion was probably one of the best ever players in quick matches

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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You're right that the real match would look different. Both players would have chosen openings that were uncomfortable for their opponent, rather than the ones they used against the top players. They could also prepare novelties. This cannot be simulated. During the match, they would learn from each game and change openings. This is also impossible for me to perform. It could be done by a grandmaster or a group of grandmasters consulting their choices.

Would Botvinnik be a weaker player in 1945? Rather, the simulation shows that the movement of 7... f5 chosen by Botvinnik in the French defense would be a mistake. The first game is a battle in the variants most often chosen by both players. Would Alekhine in reality play to exchange the hetman for figures? No one knows. The simulation approximately compares the repertoire of openings, but above all it is fun.

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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Botwinnik was masterful in playing closed games like French or Caro-Kann. This is how he shut down Tal's creative attack in the rematch.

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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Titanxx007 wrote:
Kind of cool but Botwinnik was very methodical and studied his opponents in detail to learn about their strengths and weakness. . .


Agreed.

Alekhine's chess results were rather mediocre (for a reigning world champion) after late 1943. Drew a short match with Bogoljubov in March 1943. First (+15−0=4) with Keres at Prague 1943, but the rest of the competition was not high caliber (19 year old Ludek Pachman was 10th). After World War II, Alekhine was not invited to major chess tournaments because of his alleged affiliation with Nazi Germany.

Also, what state of mind was Alekhine in? What was his health like?

I think a well prepared Botvinnik wins easily in 1945. . .

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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This variant of the French defense Botvinnik played against Tal in 2 games. He lost both games.

[pgn][Event "World Championship 23th"]
[Site "Moscow"]
[Date "1960.03.15"]
[Round "1"]
[White "Tal, Mihail"]
[Black "Botvinnik, Mikhail"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2646"]
[BlackElo "2601"]
[PlyCount "63"]
[EventDate "1960.03.15"]
[EventType "match"]
[EventRounds "21"]
[EventCountry "URS"]
[Source "ChessBase"]

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 14. cxd3 Ba4+
15. Ke1 Qxe5 16. Bg5 Nc6 17. d4 Qc7 18. h4 e5 19. Rh3 Qf7 20. dxe5 Ncxe5 21.
Re3 Kd7 22. Rb1 b6 23. Nf4 Rae8 24. Rb4 Bc6 25. Qd1 Nxf4 26. Rxf4 Ng6 27. Rd4
Rxe3+ 28. fxe3 Kc7 29. c4 dxc4 30. Bxc4 Qg7 31. Bxg8 Qxg8 32. h5 1-0
[/pgn]

[pgn][Event "World Championship 24th"]
[Site "Moscow"]
[Date "1961.04.14"]
[Round "12"]
[White "Tal, Mihail"]
[Black "Botvinnik, Mikhail"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2583"]
[BlackElo "2600"]
[PlyCount "81"]
[EventDate "1961.03.15"]
[EventType "match"]
[EventRounds "21"]
[EventCountry "URS"]
[Source "ChessBase"]

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 13. Nf3 Qxc3 14. Ra2
Nbc6 15. Rb2 Kc7 16. Rb5 Rh8 17. Qxh8 Rxh8 18. Bb2 Qxf3+ 19. gxf3 Ng6 20. h4
Ngxe5 21. h5 Nf7 22. f4 Nd6 23. Rb3 Ne4 24. Ke1 Rh6 25. Be2 Be8 26. Rd3 Nf6 27.
Bxd4 Nxd4 28. Rxd4 Bxh5 29. Rd3 Rh7 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 1-0
[/pgn]

In fact, after 1945, Botvinnik recorded a large increase in playing strength.

Alekhine-Botvinnik match simulation ChronoGraph-1944-1947

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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Both of these are French Winawer variations during the 1960 and 1961 matches and yes he lost them both. They played Caro Kann (another closed defense) more often though with a total of 15 games during those matches with Tal winning 4, Botwinnik winning 3 and 8 draws.
Saying so, that probably does not help to predict a theoretical match btw these two titans.

I am wondering if you can do a similar prediction by using AI for Karpov and Kasparov (but remove their mutual game) and check how AI would predict their match. :)

Thanks and nice job!

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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Kasparov was winning against Karpov. He was a little stronger. Sometimes it was a case of one more game won in the whole match. A good simulation should show the same result. What sense would that make? I prepare a simulation of those matches that didn't happen. A Kasparov-Fischer match would be interesting. However, I have doubts that the engines I used can simulate Kasparov's play. I'd have to check.

descriptionAlekhine-Botvinnik match simulation EmptyRe: Alekhine-Botvinnik match simulation

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