Author: Gian-Carlo Pascutto
Date: 06:57:23 03/30/02
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On March 30, 2002 at 09:47:29, Sune Fischer wrote: >On March 30, 2002 at 09:22:36, Gian-Carlo Pascutto wrote: > >>On March 30, 2002 at 09:13:26, Sune Fischer wrote: >> >>>Hmm, must improve...: >>>depth=8 -1.03 1.Bd3 Bxd3 2.Nxd3 Rd8 3.Rd1 Rd5 4.Be3 Qc6 >>>depth=9 -1.91 1.Bd3 Bxd3 2.Nxd3 Rd8 3.Qc3 Qb5 4.Nb4 Bf6 5.Qe3 Bxb2 >>> >>>My new version of ChessCraft is blind as a bat, how deep is this line anyway, >>>I'm not using any extensions other than regular q-search. >> >>7 ply (from looking at Sjeng's output) > >I don't get it, >7 -64 57 219161 Bxg6 hxg6 Qe4 Bf8 Qxg6+ Ng7 Qf7+ Kh7 Rfd1 Be2 Qg6+ Kg >is 11 plies and still not a mate, has the pv been extended internally, I don't >see this as a mate in fact white is down a bishop for 1 pawn (that's what my >eval would see right here). >I suspect the line is deeper than 9 plies. Sjeng sees the move with a 5 ply search, which gets extended to 7 ply, and that is enough to play the move. [D]r3rbk1/pp4n1/1q2p1QB/1b2N3/8/P7/1P3PP1/R2R2K1 b - - 0 0 the line at 5 ply is : Bxg6 hxg6 Qe4 Ng7 Qxg6 Bf8 Rfd1 And Sjeng considers white to be up half a pawn. -- GCP
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