Author: Richard A. Fowell (fowell@netcom.com)
Date: 00:26:17 03/06/99
Go up one level in this thread
On March 03, 1999 at 21:30:46, odell hall wrote: >Hi CCC > > In my game against Worf on ICC, I sacrificed a bishop which was critizized by >worf after the game as being unsound! My intuition told me that it was correct, >after the game I checked with hiarcs6, and fritz5 to see if they would play the >move. Neither program Found it after five minutes. I was sure that if fritz5, >a tactical genius could not find the move, I thought I was wasting my time >trying rebel. To my shock Rebel found the move quite easily in 1 minute 16 sec. >Here is the position > >r2q3r/pp1k1pb1/3p3p/3P3n/5Bbp/2N5/PPPQN1P1/2K2R1R w - - id allworld - WORF; bm >f4d6; > > > This goes to show that computers are as diverse as humans in the moves they >decide upon. Since one reader suggested that this sac might not be sound, I took the verification approach of making the sac, then asking MacChess to look at the reply for 8 hours. It's not happy to be Black after the sac. Thursday, March 4, 1999 11:12 PM 02/01|00:00:00| 571| +150| Kxd6 Rxf7 Rb8 03/01|00:00:00| 5211| +138| Kxd6 Rxf7 Bd7 Rd1 04/01|00:00:01| 20013| +136| Kxd6 Rxf7 Bd7 Ne4+ Kc7 d6+ Kc8 05/01|00:00:01| 95881| +118| Kxd6 Rxf7 Bxe2 Nxe2 Qb6 c3 Bf6 06/01|00:00:02| 246409| +119| Kxd6 Rxf7 Bxe2 Nxe2 Qb6 c3 07/01|00:00:06| 799718| +109| Kxd6 Rxf7 Bxc3 Nxc3 Bd7 Ne4+ Ke5 Re1 08/01|00:00:20| 3174490| +99| Kxd6 Rxf7 Bxc3 Nxc3 Bd7 Ne4+ Ke5 Nc5 Be8 Rxb7 Qxd5 Qxd5+ Kxd5 09/01|00:02:22| 22556162| -43| Kxd6 Rxf7 Bxc3 Nxc3 Qb6 Ne4+ Ke5 Nf2 Qg6 Rxb7 Bc8 Re7+ Kd6 10/01|00:10:41| 102322395| -51| Kxd6 Rxf7 Re8 Rxg7 Nxg7 Qf4+ Ke7 Qxg4 Kf8 Rxh4 h5 Qd4 11/01|00:34:23| 330496970| -57| Kxd6 Rxf7 Qe8 Rxg7 Bc8 Qd4 Nxg7 Ne4+ Kc7 Qxg7+ Kb8 Rxh4 Rg8 Qxh6 Rxg2 12/01|02:16:48| 1310613967| -63| Kxd6 Rxf7 Qe8 Rxg7 Nxg7 Qf4+ Ke7 d6+ Kd8 Qxg4 Qe3+ Kb1 Qg5 Qxh4 Qxh4 Rxh4 Rc8 13/01|07:34:28| 4367961968| -63| Kxd6 Rxf7 Qe8 Rxg7 Nxg7 Qf4+ Ke7 d6+ Kd7 Qxg4+ Ne6 Ne4 Qf7 Qxh4 Qg7 g4 Rae8 Friday, March 5, 1999 11:19 PM
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