Author: Will Singleton
Date: 17:32:58 11/10/99
r2r2k1/pp3ppp/2n2b2/4p3/2N5/1PP2B2/1P3PPP/R2R2K1 b - - This position gives my program fits. Some stronger progs solve it easily. It appears to be a simple case of extending on captures, and then doing the qsearch right, which I apparently am not. Here's the main line which should be found: Rxd1 Rxd1 Rd8 Rxd8 Nxd8 Nd6 b6 Nc8 Bg5 Nxa7 Bc1 and gets the pawn back. It appears that you need 13 ply to see that the bishop can get the pawn back. Extending on a capture that brings material back to nominal, there are 2 extensions in the above main line, so you now need 11 ply. The qsearch reduces this to 10. And that's what my program needs, 10 ply. Seems too long. I would love to find this sooner without blowing up the tree. (from a game on ICC today, Postmodernist vs Amateur)
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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