Author: Howard Exner
Date: 13:00:38 11/11/98
Typo on the header. 3r2k1/p4ppp/2p5/Np6/7N/BP1n2PP/P1b3B1/6K1 b - - id id "Markowski - Shirov"; bm b4; Here is the other position from the Chess Life Shirov article. His comments are: "Again the same story. Playing against the computer, White could be confident that 23 ... b4 would not be played." and later he states, "Maybe after some 10 years the program will find 23 ...b4" Well in this position Rebel in Default mode with Combination Off (as is Rebel's setting when playing games) it took 17:29 to play b4. True this is not within normal tournament time controls but who knows what would happen in a 40/2 game. If Rebel was thinking on the opponents move and the opponent took 10 minutes to move with a correct prediction by Rebel as to the opponents move then maybe it would be played. Also telling is how Rebel 10 came about playing b4. Up to the 12th ply Rebel likes the move c5 ( ply 12.00 at 5:46) during this time it does not pay much attention to the move b4 as it is 12.13 in the iteration. By the time it starts to think of b4 it is 16:38 on the clock and then shortly after it chooses b4 as best (17:29) and holds on to this move. Machine is a K6-233 with 60 MB hash in Dos. So if b4 ended up higher on the iteration list it looks as if Rebel quite possibly could have snared this one also in a tournament game. Again, I'll wager that more than a few programs will find b4 in under 5 minutes.
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