Author: Slater Wold
Date: 21:48:25 06/26/03
Go up one level in this thread
On June 26, 2003 at 17:54:35, ALI MIRAFZALI wrote: >[D]3rr3/6k1/2p3P1/1p2nP1p/pP2p1P1/P1B1Nb1B/2P2K2/5R2 b >In the above diagram Deeper Blue made a huge mistake by playing 39...Kh6 and >lost.Commercial programs do not play this move but choose 39...h4 which draws. >Amazingly no annotation to this game mentions this as the loosing mistake ;but >they concentrate on moves like 34...Qxf1+ as mistakes.I Let Chessmaster 9000 >at 1.8 GHZ play both sides at 999 seconds per move for both sides after 39...h4 >and the result is a draw.Amazingly 39....h4! is played by the programs at very >low depths also.Deeper Blue must be inferior to current Commercials for turning >a Draw into a loss by playing 39....Kh6? 200 million positions per second and >still it does not see 39...h4.I think Deeper Blue was at least 200 Elo points >weaker than the current Commercials.HERE IS CHESSMASTER 9000 autoplay at 999sec >per move at 1.8 GHZ after 39.....h4! >CHESSMASTER 9000:39...h4 40.Ng2 Kf8 41.Nxh4 Bd1 42.f6 Bxc2 43.g7+ Kf7 44.Nf5 >Kxf6 45.g5+ Kxg5 46.Bxe5 Rxe5 47.Rg1+ Kf6 48.g8=Q Rxg8 49.Rxg8 Rxf5+ 50.Bxf5 >Kxf5 AND in this Drawn position the Computer(CM 9000) moves pieces back and >forth for another 30 moves which I do not list without any advantage for any >side.SO I THINK AFTER 39.....h4! IT IS A DRAW. This is the most ridiculous thing I think I've ever read on CCC. DBII had h4, and and shook it in 29s to pick Kh6. Why? Because h4 is the worst move possible. It loses *VERY* quickly. After h4, 40.Ng2 is a _HORRIBLE_ move. g5 is winning, and winning big. F6 chooses it in seconds with a modest score. After 40...Kg8 41. Bg2 white is up over +1.50. After 41...Kf8 42. Bxf3 the score is +2.00. And guess what?! DBII saw ALL of this, while your CM @ 999 seconds did not. In the position of 39... in this game, black is lost. Period. DBII played the *best* move, Kh6 with a losing score. In this position, h4 is losing. And losing faster than Kh6.
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