Author: Uri Blass
Date: 01:25:02 12/12/01
Go up one level in this thread
On December 12, 2001 at 04:15:20, Uri Blass wrote: >On December 12, 2001 at 00:03:03, Dann Corbit wrote: > >>And some amateur programs solve it right away. >> >>[D]5rk1/ppq4p/3b2p1/1b1p1p2/3Pr3/2P2QP1/P1BB1P1P/R3R1K1 w - - am Bxe4; bm Bh6; >> >>See http://f11.parsimony.net/forum16635/messages/18963.htm for a discussion. > >Gambittiger has no problem to find Bh6. >I did not see explantion why Bxe4 is losing in the relevant link. > >The prorams that find Bh6 prefer this move for positional reasons. >Can a program find a winnin score for black after Bxe4? > >New position >5rk1/ppq4p/3b2p1/1b1p1p2/3Pr3/2P2QP1/P1BB1P1P/R3R1K1 w - - 0 1 > >Analysis by Gambit Tiger 2.0: > >1.Bh6 Rf7 2.a4 Rxe1+ 3.Rxe1 Bc6 4.Bb3 f4 5.Bxd5 Bxd5 6.Qxd5 Qxc3 > = (0.24) Depth: 7 00:00:00 76kN >1.Bh6 Rf7 2.Bxe4 fxe4 3.Qg4 Rf5 4.a4 Bd3 5.Rec1 > ² (0.30) Depth: 8 00:00:00 141kN >1.Bh6 Rf7 2.a4 Bc4 3.Bxe4 fxe4 4.Qg4 Rf5 5.Qh3 > ² (0.26) Depth: 9 00:00:01 330kN >1.Bh6 Rf7 2.a4 Bc4 3.Bxe4 fxe4 4.Qg4 Rf5 5.f3 exf3 6.Re8+ Kf7 > = (0.18) Depth: 10 00:00:03 654kN >1.Bh6 Rf7 2.a4 Bc4 3.Bxe4 fxe4 4.Qg4 Rf5 5.Rab1 Kf7 6.Re3 Bd3 > = (0.24) Depth: 11 00:00:07 1564kN >1.Bh6 Rf7 2.a4 Ba6 3.h3 Bc4 4.Bxe4 fxe4 5.Qg4 Rf5 6.a5 a6 7.Qh4 > = (0.16) Depth: 12 00:00:19 3902kN > >(Blass, Tel-aviv 12.12.2001) The only line that I found 1...fxe5 2.Nxe5 is illegal line see http://f11.parsimony.net/forum16635/messages/18986.htm I believe that if fritz did not see after an hour that it is losing there is probably no simple win for black. Yace(only material) also can see nothing in few minutes after 1.Bxe4 and it says that white has an advatage of a rook for a bishop. Uri
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