Author: Terry Presgrove
Date: 20:56:35 05/28/99
Recently I was playing Rebel10c a 30 0 game that went as follows. [Event "?"] [Site "?"] [Date "?"] [Round "-"] [White "?"] [Black "?"] [Result "*"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nf3 Be7 8. Be3 O-O 9. Qd2 Ng4 10. Bg5 Bxg5 11. Nxg5 h6 12. h4 hxg5 13. hxg5 Qb6 14. O-O-O Nxf2 15. Nd5 Qd8 16. Qe3 Nxh1 17. Rxh1 Nc6 18. Qg3 Nd4 19. Qh4 Nxe2+ 20. Kb1 f5 21. Qh8+ Kf7 22. g6+ Ke6 23. Qxg7 fxe4 * I thought that I had a won game and went straight forward for the win with 19. Qh4? missing the obvious Bc4 which wins. At the time I had that" I missed the winning line" mentality and dejectedly aborted the game after move 23.(although it turns out whites position is still quite intersting after 24. nc7!) Anyway to the point .... when I went back over the game with Rebel10b I discovered several wins for white but to my amazement I discovered that 18. Qg3 was not the best move......but rather( now quite obvious) nf6!! (mate in 10). Rebel10b finds in 3:23 on my k6-350 w/100M hash. Crafty 16.6(96M hash) switches to nf6 at 2:21 but does not find mate in 20 minutes. Crafty 16.8 stays with Qg3 for 15 minutes . Up until recently I have felt the top computer programs were at lower GM levels but I am beginning to wonder? Perhaps Dr.Hyatt is correct? The following is the position after move 17.....how long does it take your program to find the mate? r1bq1rk1/1p3pp1/p1np4/3Np1P1/4P3/4Q3/PPP1B1P1/2K4R w - - 0 18 TP
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