Author: blass uri
Date: 23:01:54 05/28/99
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On May 28, 1999 at 23:56:35, Terry Presgrove wrote: >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 Junior5.4 needed only 10 seconds to find Nf6+ and only 55 seconds to find the mate on pentium200 It was slowed down by a small factor because I was here in the same time. Uri
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