Author: Robert Hyatt
Date: 07:52:46 09/07/99
Go up one level in this thread
On September 07, 1999 at 10:01:08, blass uri wrote: >On September 07, 1999 at 09:20:05, blass uri wrote: > >>On September 06, 1999 at 17:52:31, James T. Walker wrote: >> >>>Here is game 7 as mentioned in the subject line. This is an interesting game >>>because of the uneven material of Q vs RBN. Usually the 3 pieces win this type >>>game. The 3 pieces in the hands of a computer become a multi-arm monster. >>>Crafty now leads the match 5-2. >>> >>> >>> >>> >>>[Event "40/2"] >>>[Site "?"] >>>[Date "1999.09.06"] >>>[Round "7"] >>>[White "Chess Tal II"] >>>[Black "Crafty 16.15"] >>>[Result "0-1"] >>> >>>1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 exd4 8. >>>Re1 d5 9. Nc3 dxc3 10. Bxd5 Bb7 11. Bg5 Be7 12. Rxe4 f6 13. Bxf6 gxf6 14. Ng5 >>>fxg5 15. Qh5+ Kd7 16. Be6+ Kd6 17. Qh3 Nb4 18. Rd1+ Kc6 19. Rxd8 Raxd8 >> >>r2R3r/1bp1b2p/p1k1B3/1p4p1/1n2R3/2p4Q/PPP2PPP/6K1 b - - 0 1 >> >>I do not understand what is the reason that crafty did not play 19...Rhxd8 >> >>My crafty16.6 as an engine for Junior wants to play Rhxd8 and after Raxd8? Bd7+ >>there is a significant drop in the evaluation. > >Tal also did a big mistake when it missed a draw in the game by 16.Qh3+ or >16.Qg4+ but it is not surprising because when I look at the games I see that the >wrong knowledge of tal pushes it to play bad moves. > >I want to know what was tal's evaluation when it played 16.Be6+? > >Uri This is a common problem. CST has a speculative eval, and I'd bet it was well above zero here. Which means it tries to avoid a draw, generally, until it is too late.
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