Author: Robert Hyatt
Date: 08:28:41 09/01/99
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On September 01, 1999 at 04:55:34, blass uri wrote: >r1b1k2r/1pqp1ppp/p1Nbp3/8/4P3/2N5/PPP2PPP/R1BQR1K1 b kq - 0 1 >avoid Bxh2+ > >Junior5 solved this test againsy yudasin at tournament time control but could >not solve it at faster time control > Here is my output for this. Crafty doesn't think it is 'good' at all, but does bounce between that move and dxc6/bxc6 as it searches. By the 1:33 mark it has decided that this is getting bad enough that it discounts it and changes for good at depth=13... It finally (after finishing depth=13) settles on bxc6. If it has a target time of 94 seconds (or longer) it won't play Bxh2. In looking at it, Bxh2 doesn't look horrible, since white has castled and black has not, although I doubt I would play it myself. >r2q1rk1/pb3ppp/2n5/1pbNP3/2p1Q3/P4N2/BP3PPP/R4RK1 w - - 0 1 >from Junior-nimzo(wccc) >find Nf6+ > This is a tactical shot that really has nothing to do with king safety. Unless you weigh king exposure _way_ high, which will find this move, but will also find lots of sacrifices that are totally worthless. Crafty will almost make this move at any time control, but I have a scoring term that says _never_ sac a piece for 2-3 pawns, because of all the 'bad trades' I see other programs make and lose as a result of. I don't know that I want it to play this, although it will expect it to be played against it and defend accordingly,since I have some asymmetry... >fixing a program to solve the second one may cause a failure in the first >position. > >I am interested to know if tal can solve the first one >A program with real knowledge about king safety should solve also the first >position. > >Uri
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