Author: Uri Blass
Date: 01:19:03 10/14/01
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On October 14, 2001 at 00:49:39, Uri Blass wrote: >On October 13, 2001 at 23:48:51, Miguel A. Ballicora wrote: > >>This is WCSAC 738: >>[D]r1b2r2/3pNpkp/3pn1p1/2pN3P/2PnP3/q3QP2/4BKP1/1R5R w - - bm Qh6+; >> >>Der Bringer with "two best options" in analyzing mode finds >>after 10 plies that Qh6+ is Mate in 11. Funny is that the uninteresting >>move Qd2 is also mate in 11!! Unbelievable what computers can find. >>Another cook and another position from WCSAC eliminated. >> >>Regards, >>Miguel > >1)I disagree that Qd2 is uninteresting. >It is the move that most humans are going to play but for some reason there are >humans who look for a sacrifice and not for the best move. It seems that I was wrong here and Qd2 is not a simple win. Black has a defence g5 and I do not see mate in 10 for white Chassmaster and Deep Fritz have also no idea about mate in 10 after 1.Qd2 g5 I simply did not look at the position for a long time and missed the simple defence g5. after 1.Qd2 g5 Deep fritz see only 1.xx for white New position [D]r1b2r2/3pNpkp/3pn3/2pN2pP/2PnP3/q4P2/3QBKP1/1R5R w - - 0 1 Analysis by Deep Fritz: 2.Qxd4+-- -+ (-1.62) Depth: 1/4 00:00:00 2.Qxd4+-- Nxd4 -+ (-5.87) Depth: 1/5 00:00:00 2.Nxc8! -+ (-2.53) Depth: 1/5 00:00:00 2.Nxc8! Rfxc8 3.Nb6 = (-0.12) Depth: 1/5 00:00:00 2.Nf5+! = (0.00) Depth: 1/5 00:00:00 2.Nf5+! Nxf5 = (0.09) Depth: 1/8 00:00:00 2.Kg1! = (0.13) Depth: 1/8 00:00:00 2.Rhd1! = (0.25) Depth: 1/9 00:00:00 2.h6+! ² (0.31) Depth: 1/9 00:00:00 2.h6+ Kh8 3.Rhd1 Re8 = (0.22) Depth: 2/11 00:00:00 2.h6+ Kh8 3.Rhd1 Re8 = (0.22) Depth: 3/12 00:00:00 2kN 2.Rhe1! = (0.25) Depth: 3/14 00:00:00 3kN 2.Nf5+! ² (0.28) Depth: 3/14 00:00:00 3kN 2.Nf5+! Kh8 3.Nxd6 Kg7 ± (0.84) Depth: 3/19 00:00:00 4kN 2.Nf5+ Nxf5 3.exf5 Nf4 4.f6+ Kg8 5.Nxf4 ± (0.91) Depth: 4/15 00:00:00 7kN 2.Nb6! ± (0.94) Depth: 4/16 00:00:00 13kN 2.Nb6! Rb8 3.Nbxc8 Rfxc8 ± (1.19) Depth: 4/20 00:00:00 25kN 2.Nb6 Rb8 3.Nbxc8 Rfxc8 4.h6+ Kh8 5.Nxc8 Rxc8 ± (1.19) Depth: 5/22 00:00:00 39kN 2.Nb6 Nf4 3.g3 Ndxe2 4.Nf5+ Kh8 5.Nxa8 Nxg3 6.Kxg3 ± (1.25) Depth: 6/20 00:00:00 97kN 2.Nb6 Ba6 3.Nxa8 Rxa8 4.Nd5 Nf4 5.Nxf4 gxf4 6.Rhd1 ± (1.34) Depth: 7/26 00:00:00 306kN 2.Nb6 Rb8 3.Nbxc8 Rfxc8 4.Nxc8 Rxc8 5.Rhd1 Nf4 6.Bd3 ± (1.25) Depth: 8/25 00:00:01 835kN 2.Nb6 Rb8 3.Nbxc8 Rfxc8 4.h6+ Kh8 5.Nxc8 Rxc8 6.Rhd1 Ra8 ± (1.31) Depth: 9/29 00:00:03 2306kN 2.Nb6 Rb8 3.Nbxc8 Rfxc8 4.Nxc8 Rxc8 5.g3 Nxe2 6.Ra1 Qc3 7.Qxe2 ± (1.25) Depth: 10/34 00:00:13 9807kN 2.Nb6 Rb8 3.Nbxc8 Rfxc8 4.h6+ Kh8 5.Nxc8 Rxc8 6.Rhd1 Nf4 7.Bd3 Ra8 ± (1.28) Depth: 11/35 00:00:37 25932kN 2.Nb6 Rb8 3.Nbxc8 Rfxc8 4.h6+ Kh8 5.Nxc8 Rxc8 6.Rhd1 Ra8 7.Bd3 Nf4 ± (1.28) Depth: 12/36 00:01:29 64092kN 2.Nc7! ± (1.31) Depth: 12/37 00:02:22 102443kN 2.Nc7! Ra4 3.Nb5 Nxb5 4.cxb5 Qa2 5.Qxd6 Bb7 6.Ra1 Qc2 +- (1.47) Depth: 12/37 00:03:47 161912kN (Blass, Tel-aviv 14.10.2001) Uri
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