Author: Uri Blass
Date: 08:14:33 01/03/02
This is analysis of Crafty under chessbase GUI New position [D]2r1k1r1/2p2pP1/1p5p/p3nP2/3N3B/P1P5/2q3PP/R3R1K1 b - - 0 1 Analysis by Crafty 18.12: 4...Qxc3 5.Rxe5+ -+ (-2.05) Depth: 1/6 00:00:00 4...Qxc3 5.Rxe5+ Kd7 6.Re7+ Kd6 ยต (-1.16) Depth: 2/6 00:00:00 I am interested to know what is the remaining depth of Crafty after every move at depth 2. I think that the only relevant extensions of Crafty for the pv is check extension and one reply to check extension(mate threat is not relevant at depth 2,recapture is not at the same square and no pawn is pushed) Does it mean the following? 1)The remaining depth after 4...Qxc3 is 1 because Qxc3 reduce 1 from the remaining depth 2)The remaining depth after 5.Rxe5+ is 2 because after this move crafty extends for 2 reasons(check and single reply) so it add 2 to the remaining depth thanks toextension and reduce only 1 from the remaining depth as usual. 3)The remaining depth after 5...Kd7 is 1 4)the remaining depth after 6.Re7+ is again 1(check extension) 5)the remaining depth after 6...Kd6 is 0 6)Crafty has to evaluate and find no good capture for white so the pv ends at this point Uri
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