Author: Koundinya Veluri
Date: 22:29:05 06/14/02
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On June 15, 2002 at 00:44:19, John Merlino wrote: >On June 14, 2002 at 21:24:02, Slater Wold wrote: > >I'm a little confused by this one.... > >>Analysis by Shredder Paderborn: >... >>1.g7 f2 2.Be7 f1R 3.gxh8Q+ Kxh8 4.e6 Kg8 5.Kd7 Rd1 6.Bd6 Rxd3 7.e7 Rf3 8.e8Q+ >>Rf8 9.Qxf8# >> ± (1.28) Depth: 14/26 00:00:02 733kN, tb=935 > >How does a PV that ends in checkmate get an eval of only 1.28??? > >jm My engine did this sometimes too, when the checkmating move came from the quiescence search. My old quiescence search couldn't find checkmates (since I didn't include check escapes) but when a move is converted to SAN, the function looks for the checkmate to see if a '#' should be appended. So once in a while I got checkmating moves in the PV without a mate score. But after I included check escapes in the quiescence search, this stopped happening. Koundinya
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