Author: Uri Blass
Date: 11:29:16 11/03/05
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On November 03, 2005 at 08:40:02, Ignacio Santos Crespo wrote: >Hi Uri, > >Thank you for your answer. The following position is interesting: Fruit crash >and Movei crash after depth 16. > >Mate in 69 > >[D]1K1n2q1/1p4pR/1prPPpPn/1RB1p1rP/8/1B2p3/2p2b2/1k2N3 w - - 0 1 > >Regards, >Ignacio. I already found the bug but I think that in this type of position movei even without bug is not going to solve it in a reasonable time even if I change the limitation of search to more than 100 plies. The problem is that movei is aggresive in extending single reply only when the side that force the single reply has significant disadvantage and does not extend at all single replies when the side that force them has the advantage and in this position after enough moves the side that force the single reply get the advantage. Movei many moves after the initial position cannot see mate at depth 15 inspite of the fact that 100 plies are clearly enough for it and it should be mate in 46 if mate in 69 is correct in the initial position [D]1K1n2q1/1p4pR/1prPPpPn/3R3P/2B5/8/2pB1p2/3k4 w - - 0 24 Uri
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