Andriy Slyusarchuk vs Rybka 4.01 (game1)

[Spliffjiffer]

some info here:
https://www.youtube.com/redirect?q=http ... HY4iNHZeAc
and
https://www.youtube.com/redirect?q=http ... HY4iNHZeAc

Andriy Slyusarchuk vs Rybka 4.01 (game1) 1:0
[pgn]1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Qc7 6. g3 a6 7. Bg2 Nf6 8. O-O d6 9. Re1 Bd7 10. Nxc6 Bxc6 11. Nd5 Bxd5 12. exd5 e5 13. Re3 Be7 14. Rc3 Qd7 15. a4 O-O 16. a5 Rfc8 17. Rb3 Rc4 18. Bf1 Rc7 19. Be3 Re8 20. Rb4 e4 21. Bg2 Qf5 22. c3 Bf8 23. Qb3 Qh5 24. Re1 Qxd5 25. Qxd5 Nxd5 26. Rxe4 Rxe4 27. Bxe4 Nxe3 28. Rxe3 g6 29. Bd5 Rc5 30. c4 Rxa5 31. Rf3 b6 32. Bxf7+ Kh8 33. Bxg6 Bg7 34. Be4 Bxb2 35. Rf7 h5 36. Bd5 b5 37. cxb5 axb5 38. Rd7 Ba3 39. Kg2 Bc5 40. f4 Ra7 41. Rd8+ Kg7 42. Kh3 Kg6 43. Kh4 Re7 44. Rg8+ Kf6 45. Kxh5 Rh7+ 46. Kg4 Rxh2 47. Rf8+ Ke7 48. Rf7+ Ke8 49. Rb7 Kd8 50. Rxb5 Rd2 51. Be4 Rd4 52. Kf5 Rb4 53. Rxb4 Bxb4 54. Ke6 Ke8 55. f5 Kd8 56. g4 *[/pgn]

somewhere around here Rybka lost the game i believe :
[d]7k/3R4/3p4/rp1B3p/8/6P1/1b3P1P/6K1 b - - 1 38
momentarily id say that 38...Ba3?! was probably the culprit that lost the game finally !??
can we find out where Rybka finally lost the game nowadays?... is 38...h4!? (38...b4!? looks like beeing a tranposition to me) loosing as well ?...and is 38...Ba3?! loosing ?

[lkaufman]

Looks like it was Stockfish playing White, except on move 13 SF probably played Be3 and he "heard" Re3.

[Spliffjiffer]

...yes!...beyond the discussion about cheating though its relly interesting to find the "point of no return", thx Larry for your response, i wish you both(3) all the best with Komodo...a great engine !...to get to a more puzzeling question ( ...for me myself momentarily without sufficiant access to maybe relevant 7-men TB's) though, id like to ask this:
[d]5k2/8/4B3/8/1R3PK1/2b1r1P1/8/8 w - - 1 36
is this senseless to analyze for a win ?...an interpretation from you,Larry, (one of the most qualified posters ive ever met) would make me very proud btw!

[lkaufman]

...yes!...beyond the discussion about cheating though its relly interesting to find the "point of no return", thx Larry for your response, i wish you both(3) all the best with Komodo...a great engine !...to get to a more puzzeling question ( ...for me myself momentarily without sufficiant access to maybe relevant 7-men TB's) though, id like to ask this:
[d]5k2/8/4B3/8/1R3PK1/2b1r1P1/8/8 w - - 1 36
is this senseless to analyze for a win ?...an interpretation from you,Larry, (one of the most qualified posters ive ever met) would make me very proud btw!

A quick playout with Komodo led to a win. It's probably impossible to prove that it's a win, but it looks and feels like a win and that's the way I would bet.
This episode is another argument in favor of FRC (960). Of course it's just as easy to cheat in FRC as in normal chess, but since there are (so far anyway) no databases and no theory a cheater would be cheating right from the start, and couldn't claim credibly that he was find the first 20 moves just by his memory of theory. Cheat detection is much easier with FRC.

[Spliffjiffer]

currently i tend to withdraw my conclusion of 38...Ba3?! as being decisive already...tired now of analysing and going to sleep...as it seems move 39 or 40 is more promising in terms of make such claims...sry for that if true, good night and cya friends.

[Spliffjiffer]

im almost sure that 39...Bc5 is a loosing move now...and 38...Ba3 is probably still holding...at least i couldnt find a win although i tried as hard as i could...i was going through the lines about 12-15 hours finally.