Lyudmil Tsvetkov wrote:to make my task easier and your a bit more difficult, anyone able to conclusively prove beyond any doubt, with lines for each and every variation(some 100 billion or so) that black has a draw?
Can we at least have a recap of what actually was played on the previous 6
pages of move discussions, where takebacks of move was allowed even
though there was no time control at all.
On 45.Ra6 variation:
Lyudmi (Bulgaria)-Rodolfo (Italy) 0.5 - 0.5
Lyudmil (Bulgaria)-Ignacio (Spain) 0.5 - 0.5
Here's the complete game analysis of these draws provided by previous 6 pages:
[pgn]
[Event "IBM Man-Machine, New York USA"]
[Site "New York, NY USA"]
[Date "1997.05.04"]
[Round "2"]
[White "Deep Blue (Computer)"]
[Black "Garry Kasparov"]
[Result "1-0"]
[TimeControl "0+2"]
[Termination "normal"]
[PlyCount "89"]
[WhiteType "human"]
[BlackType "human"]
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. Ng3 Na5 14. Bc2 c5
15. b3 Nc6 16. d5 Ne7 17. Be3 Ng6 18. Qd2 Nh7 19. a4 Nh4 20. Nxh4 Qxh4 21.
Qe2 Qd8 22. b4 Qc7 23. Rec1 c4 24. Ra3 Rec8 25. Rca1 Qd8 26. f4 Nf6 27.
fxe5 dxe5 28. Qf1 Ne8 29. Qf2 Nd6 30. Bb6 Qe8 31. R3a2 Be7 32. Bc5 Bf8 33.
Nf5 Bxf5 34. exf5 f6 35. Bxd6 Bxd6 36. axb5 axb5 37. Be4 Rxa2 38. Qxa2 Qd7
39. Qa7 Rc7 40. Qb6 Rb7 41. Ra8+ Kf7 42. Qa6 Qc7 43. Qc6 Qb6+ 44. Kf1 Rb8 (45. Ra6 {Lyudmil Tsvetkov-Rodolfo Leoni 0.5-0.5} Qe3 46. Qxd6 Re8
47. Qc7+ Re7 48. Qc6 Qxe4 49. d6 Qxf5+ 50. Kg1 Rd7 51. Qxb5 Qe6 52. Qc5 Kg6
53. Rc6 e4 54. Qxc4 ({Lyudmil Tsvetkov-Ignacio Santos 0.5-0.5}54. Qd4 e3
55. Qg4+ Kf7 56. Rc7 Qxg4 57. hxg4 Ke6 58. Rxd7 Kxd7 59. Kf1 Kxd6 60. Ke2
Ke6 61. Kxe3 Ke5 62. Kd2 f5 63. gxf5 Kxf5 64. Kc2 h5 65. g3 g5 66. Kd2 h4
67. gxh4 gxh4 68. Ke3 {=}) 54. .. Qxc4 55. Rxc4 Kf5 56. b5 Ke5 57. Rb4 Kd5
58. b6 Kc6 59. c4 Rd8 60. Rb5 Rf8 61. Kf2 Kxd6 62. g4 g6 63. Ke3 f5 64.
gxf5 gxf5 65. h4 Kc6 66. b7 Kc7 67. b8=R Rxb8 68. Rxf5 Re8 69. Rf6 Kd7 70.
c5 Re5 71. c6+ Kc7 72. Rxh6 Re8 73. h5 Re5 74. Kf2 Rf5+ 75. Ke1 Re5 76. Kf2
{=}) 45. Ra6 {1-0} 1-0
[/pgn]
Looks like it is final, 45.Ra6 only draws, while 45.Qd7+ and 45.Qxb6 was stronger. Could this be a strong case for Kasparov that humans intervened by forcing
the weaker 45.Ra6 move for Deep Blue? Maybe I am just wrong because it proves
nothing except SF8 is just stronger than Deep Blue 2 that's why DB2 played the weaker 45.Ra6 move.
regards