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Rybka (Computer) vs Gandalf (Computer)
? (2005), rd 6, Dec-29
Caro-Kann Defense: Advance Variation (B12)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Jan-27-06  RandomVisitor: Two mistakes by Gandalf (and a nice double pawn sacrifice by Rybka):

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Bd3 Bxd3 5. Qxd3 e6 6. Nf3 Nd7 0.22/18 7. Nc3 0.22/18 Ne7 0.22/18 8. O-O last book move Nf5 0.22/18

9. a4 0.22/18 Be7 0.32/18
10. g4 0.31/18 Nh4 0.31/18
11. Nxh4 0.30/18 Bxh4 0.30/18
12. f4 0.31/18 Be7 0.30/18
13. f5 0.30/18 c5 0.38/18
14. fxe6 0.46/18 fxe6 0.38/18
15. Nb5 0.46/18 cxd4 $16 1.37/18
(♖ybka 1.01 ♗eta 13: 15... Qb6 16. a5 Qc6 17. c4 a6 18. Nd6+ Bxd6 19. exd6 Qxd6 20. Be3 O-O-O 21. Rad1 dxc4 22. Qxc4 $14 0.46/18)

16. Bg5 1.37/18 Nxe5 $18 1.81/18
(♖ybka 1.01 ♗eta 13: 16... Qb6 17. a5 Qc6 18. Bxe7 Kxe7 19. Nxd4 Qc5 20. b4 Qc7 21. a6 b5 $16 1.37/18)

17. Qg3 1.65/18 Bf6 2.08/18
18. Rae1 2.07/18 O-O2.14/18
19. Qxe5 2.15/18 Bxe5 2.14/18
20. Bxd8 2.14/18 Rxf1+ 2.14/18
21. Kxf1 2.17/18 Bxh2 2.24/18
22. Be7 2.13/18 Kf7 2.29/18
23. Bd6 2.29/18 Bxd6 2.29/18
24. Nxd6+ 2.29/18 Ke7 2.40/18
25. Nf5+ 2.40/18 Kf6 2.51/18
26. Nxd4 2.51/18 Re8 2.55/18
27. Kg2 2.49/18 e5 2.49/18
28. Rf1+ 2.49/18 Kg5 2.53/18
29. Nf3+ 2.53/18 Kxg4 2.53/18
30. Nh2+ 2.53/18 Kh4 2.92/18
31. Rf7 2.92/18 e4 2.90/18
32. Rxg7 2.92/18 h5 3.27/18
33. Nf1 3.27/18 d4 3.78/18
34. Nd2 3.62/18 a6 3.84/18
35. Nb3 3.80/18 Re5 3.95/18
36. Nxd4 3.95/18 Rg5+ 3.98/18
37. Rxg5 3.98/18 Kxg5 3.98/18
38. Ne6+ 3.98/18 Kf5 3.98/18
39. Nc5 3.98/18 Ke5 4.89/18
40. Nxb7 4.89/18 Kd5 4.89/18
41. Kg3 4.89/18 Kc4 4.95/18
42. Nd6+ 4.95/18 Kd5 4.95/18
43. Nf5 4.95/18 Kc4 4.95/18
44. b3+ 4.95/18 Kd5 5.85/18
45. Kf4 5.85/18 e3 5.85/18
46. Kxe3 5.85/18 Ke5 5.85/18 1-0

Jan-27-06  THE pawn: That was one hell of a powerful knight in an endgame.

<RandomVisitor> I can't find the mistakes in your post, where did gandalf make mistakes?

Jan-28-06  RandomVisitor: Each time Rybka makes a comment (such as after moves 15 and 16) it is suggesting a better move - in this case, 15...Qb6 is better than cxd4 (score 0.46 rather than 1.37) and again 16...Qb6 is better than the move played Nxe5 (1.37 vs. 1.81). Otherwise Rybka agrees that the move played in the game was best. Actually, I have set a 0.10 threshold, so that no comment is generated unless a move is found that is 0.10 "better" than the move played.
Jan-29-06  morpstau: That was one hell of a powerful knight in an endgame.
Jan-29-06  THE pawn: <chessgames> --> The user named <morpstau> always repeat other's comments in a copy/paste manner. None of his posts aren't copied/paste and this is getting annoying, is there something to do?
Aug-13-06  spirit: rybka is terrible...these sacs look like magic!

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