Author: Uri Blass
Date: 05:48:48 02/10/02
Go up one level in this thread
On February 10, 2002 at 05:50:24, Uri Blass wrote: >On February 09, 2002 at 23:13:30, K. Burcham wrote: > >>This turned out to be a very difficult test position. >>Deep Shredder6 in over 22 hours on 3100 mhz will not play Nxf2. >>Chess Tiger 14.0 1000mhz in over 21 hours will not play Nxf2. >>Fritz7 1507 mhz in over 20 hours will not play Nxf2. >> >>if i make the first move Nxf2, then Deep Shredder6 will make the next move in >>this line Nxf2 Kxf2 Bh4 g3 f4. and will play each move in this line. so Deep >>Shredder6 agrees with this line. >> >>So with this line, it seems the depth is about 10 until Shredder6 sees the line >>is winning for black. Nxf2 Kxf2 Bh4 g3 f4 4.Kg2 fxg3 5.hxg3 Bxg3 6.Rh1 >>Bh4 7.Nf1 Qf6 8.Bxh7+ Kh8 9.Bd3 Rae8 10.Kg1 Be2 11.Bf5 (224.630.445) 575.2 >>13.01 6:30 -0.85 (did i count right here) but with 20 hours at depth 19 >>Deep Shredder6 will not play Nxf2. >> >> >>[D] r2q1rk1/ppp1b1pp/2n5/3p1p2/3Pn1b1/2PB4/PPQN1PPP/RNB1R1K1 b - - 0 1 >> >>black won by Nxf2 Kxf2 Bh4+ g3 f4 >>I will try to give a more detailed analysis of this position but I remember that >>black can win it against every defence of white >>It is difficult even after f4 for programs to see that white is losing and >>Junior5 after some hours in the position after f4 evaluates the position as 0.19 >>pawns advantage for white. >> >>Uri >> >> >>Shredder 6: 2x1533mhz 512 hash >> 16.01 34:23 +0.31 1...Bd6 2.Nf1 Qh4 3.Na3 a6 4.h3 Bh5 5.Be3 f4 6.Bc1 Bxa3 >>7.bxa3 Bg6 8.Nh2 (965.481.550) 467.9 >> 17.01 111:09 +0.54 1...Bd6 2.Nf1 Qh4 3.Na3 a6 4.Re3 f4 5.Bxe4 fxe3 6.Bxd5+ >>Kh8 7.Bxe3 Rad8 8.Bxc6 bxc6 (3.178.285.525) 476.5 >> 18.01 421:46 +0.76 1...Bd6 2.Nf1 Qh4 3.b3 Rf6 4.Ng3 Kh8 5.a3 Rff8 6.a4 Rae8 >>7.Bxe4 fxe4 8.Ba3 Be7 (12.249.550.309) 484.0 >> 19.01 1226:56 +0.89 1...Bd6 2.Nf1 Qh4 3.a4 Kh8 4.b3 Rf6 5.Ng3 g5 6.Re3 Rh6 >>7.h3 Bf4 8.Re1 Bxh3 (36.663.667.488) 498.0 >>best move: Be7-d6 time: 1372:22.985 min n/s: 511.653 CPU 199.9% nodes: >>42.131.054.127 depth 19 >> >>Chess Tiger 14.0 1000mhz 192 hash >>02:01:10.8 -0.12 18 1727643107 Bd6 Nf1 Qh4 Na3 a6 Re3 Nf6 Re6 f4 Rxd6 cxd6 Bxf4 >>Rad8 Re1 Bf5 Bxf5 Qxf4 Be6+ Kh8 >>09:41:35.9 0.16 19 40158732 Bd6 Nf1 Qh4 Na3 a6 Re3 Nf6 Bxf5 Bxf5 Qxf5 Ng4 Qxd5+ >>Kh8 g3 Nxe3 Nxe3 Qf6 f4 Qg6 >>21:31:56.1 0.16 20 -2024641247 Bd6 Nf1 Qh4 Na3 a6 Re3 Nf6 Bxf5 Bxf5 Qxf5 Ng4 >>Qxd5+ Kh8 g3 >> >>Fritz7: 1507 mhz 256 hash >>1...Bd6 2.Nf1 Qh4 3.Re3 Nf6 4.f3 f4 5.Re2 Bh5 6.b3 Rae8 7.Ba3 >> (-.38) Depth: 18/48 05:47:07 14824155kN >>1...Bd6 2.Nf1 >> (-.41) Depth: 19/52 14:00:51 36310193kN >> (over 20 hours did not update analysis) >> >> >>After: Nxf2 Kxf2 Bh4 g3 f4 >> [D] r2q1rk1/ppp3pp/2n5/3p4/3P1pbb/2PB2P1/PPQN1K1P/RNB1R3 w - - 0 1 >> >>Fritz 7: 1507 mhz 192 hash >>4.Kg2 fxg3 5.Bxh7+ Kh8 6.hxg3 Be7 >> +- (2.63) Depth: 8/28 00:00:00 319kN >>4.Kg2 f3+ >> +- (2.44) Depth: 9/32 00:00:01 1303kN >>4.Bxh7+ Kh8 5.Kg2 Qd7 6.gxh4 >> +- (2.44) Depth: 9/32 00:00:02 1622kN >>4.Bxh7+-- >> +- (2.16) Depth: 10/30 00:00:03 2529kN >>4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.Nf1 Rxf1 >> +- (2.13) Depth: 10/33 00:00:04 3022kN >>4.Kg2! >> +- (2.16) Depth: 10/33 00:00:05 3446kN >>4.Kg2 fxg3 5.hxg3 Qd6 6.gxh4 Rf2+ 7.Kxf2 Qh2+ 8.Ke3 Qh3+ 9.Nf3 Qxf3+ 10.Kd2 >> +- (2.19) Depth: 10/33 00:00:05 3928kN >>4.Kg2 fxg3 5.Bxh7+ Kh8 6.hxg3 Qd6 7.Nf1 >> +- (2.13) Depth: 11/33 00:00:14 10201kN >>4.Kg2-- >> +- (1.85) Depth: 12/36 00:00:23 15913kN >>4.Kg2 fxg3 5.Bxh7+ Kh8 6.hxg3 Bh3+ 7.Kxh3 Bxg3 8.Nf3 Rxf3 9.Kg2 Bxe1 10.Kxf3 >> +- (1.82) Depth: 12/39 00:00:33 23370kN >>4.Kg2-- >> +- (1.54) Depth: 13/40 00:01:09 49143kN >>4.Kg2 fxg3 5.Rf1 gxh2 6.Bxh7+ Kh8 7.Kh1 Qd6 >> ± (1.00) Depth: 13/44 00:01:54 81088kN >>4.Kg2! >> ± (1.29) Depth: 14/44 00:05:14 225140kN >>4.Kg2 fxg3 5.hxg3 Bxg3 6.Bxh7+ Kh8 7.Rh1 Bh4 8.Qg6 Rf2+ 9.Kg1 Qe7 10.Ne4 Bf5 >> ± (1.32) Depth: 14/44 00:06:40 287765kN >>4.Kg2-- >> ± (1.04) Depth: 15/43 00:10:58 474202kN >>4.Kg2 fxg3 5.hxg3 Bxg3 6.Rh1 Qf6 7.Bxh7+ Kh8 8.Bg8+ Kxg8 >> µ (-0.90) Depth: 15/50 00:40:12 1732610kN >>4.Kg1! >> µ (-0.87) Depth: 15/50 00:46:20 2000417kN >>4.Kg1 fxg3 5.Nf1 gxh2+ 6.Qxh2 Bf2+ 7.Kg2 h5 8.Re2 Qf6 >> µ (-0.84) Depth: 15/50 00:48:36 2101317kN >> >> >>Shredder6: 2x1533 mhz 512 hash >> 12.01 1:15 +1.42 4.Kg2 fxg3 5.hxg3 Bxg3 6.Bxh7+ Kh8 7.Rh1 Bh4 8.Qg6 Rf4 >>9.Rf1 Bf5 10.Qxf5 Rxf5 11.Bxf5 (43.479.086) 578.9 >> 13.01 2:03 +1.17-- 4.Kg2 fxg3 5.hxg3 Bxg3 6.Bxh7+ Kh8 7.Rh1 Bh4 8.Qg6 Rf4 >>9.Rf1 Qf8 10.Rxf4 Qxf4 11.Kh1 Bf3+ 12.Nxf3 Qxc1+ 13.Ng1 Qxb2 14.Qg5 (70.624.732) >>572.2 >> 13.01 2:24 +0.67-- 4.Kg2 fxg3 5.hxg3 Bxg3 6.Bxh7+ Kh8 7.Rh1 Bh4 8.Qg6 Rf4 >>9.Rf1 Qf8 10.Rxf4 Qxf4 11.Kh1 Bf3+ 12.Nxf3 Qxc1+ 13.Kg2 Qxb2+ 14.Qc2 Qxa1 >>15.Nxh4 (82.450.456) 569.9 >> 13.01 6:30 -0.85 4.Kg2 fxg3 5.hxg3 Bxg3 6.Rh1 Bh4 7.Nf1 Qf6 8.Bxh7+ Kh8 >>9.Bd3 Rae8 10.Kg1 Be2 11.Bf5 (224.630.445) 575.2 >> 14.01 21:15 -0.93 4.Kg2 fxg3 5.hxg3 Bxg3 6.Rh1 Bh4 7.Nf1 Qf6 8.Be3 Bf3+ 9.Kg1 >>Bxh1 10.Kxh1 Qf3+ 11.Qg2 Rae8 12.Nbd2 Qxg2+ 13.Kxg2 Ne7 (752.907.205) 590.1 >> 15.01 43:15 -1.18-- 4.Kg2 fxg3 5.hxg3 Bxg3 6.Rh1 Bh4 7.Nf1 Qf6 8.Be3 Rae8 >>9.Kg1 Rxe3 10.Bxh7+ Kh8 11.Be4 Rxe4 12.Nbd2 (1.542.308.200) 594.1 >> 15.01 51:49 -1.68-- 4.Kg2 fxg3 5.hxg3 Bxg3 6.Rh1 Bh4 7.Nf1 Qf6 8.Be3 Rae8 >>9.Kg1 Rxe3 10.Bxh7+ Kh8 11.Nxe3 Bf2+ 12.Kf1 Qf3 13.Be4+ Bh3+ 14.Ng2 >>(1.844.461.791) 593.2 >> 15.01 68:02 -1.72 4.Kg2 fxg3 5.hxg3 Bxg3 6.Rh1 Bh4 7.Nf1 Qf6 8.Be3 Rae8 9.Kg1 >>Rxe3 10.Bxh7+ Kh8 (2.464.855.967) 603.8 >>kburcham > > >Interesting that both Fritz and shredder did not find Bh3+ in their main line >when Bh3+ was played in the game that the position is from it(asi alperopvich >was black and he is even not a master): > >Here is the game line: >11...Nxf2 12.Kxf2 Bh4+ 13.g3 f4 14.Kg2 fxg3 15.hxg3 >Bh3+ 16.Kxh3 Bxg3 17.Bxh7+ Kh8 18.Nf3 Rxf3 19.Rh1 Bf4+ 20.Kg2 Qg5+ > > >Yace cannot see positive score for black but after 2 hours it can find the game >line > >I do not know if Bh3+ is the fastest way to win but yace likes it at depth 14. >I remember that I verified that 5...Bh3+ is good for black at that time. > >4.Kg2 fxg3 5.hxg3 Bh3+ 6.Kxh3 Bxg3 7.Nf3 Rxf3 8.Bxh7+ Kh8 9.Kg2 Qf6 10.Re2 Bd6 >11.Re3 Rf1 12.Bd3 Rf8 > ² (0.62) Depth: 14 01:55:28 2508868kN > >Uri Yace seems to believe that Bh3+ is clearly best Here is Yace's analysis [D]r2q1rk1/ppp3pp/2n5/3p4/3P2bb/2PB2P1/PPQN2K1/RNB1R3 b - - 0 1 Analysis by Yace 0.99.56: 5...Bxg3 6.Bxh7+ Kh8 7.Kxg3 +- (4.37) Depth: 1 00:00:05 5...h6 6.gxh4 Qxh4 +- (3.58) Depth: 1 00:00:05 5...Bg5 6.Bxh7+ Kh8 +- (2.17) Depth: 1 00:00:05 5...Be7 6.Bxh7+ Kh8 +- (2.10) Depth: 1 00:00:05 5...Be7 6.Bxh7+ Kh8 +- (2.10) Depth: 2 00:00:05 5...Be7 6.Bxh7+ Kh8 7.Bg6 +- (2.55) Depth: 3 00:00:05 5...Be7 6.Bxh7+ Kh8 7.Bd3 +- (2.62) Depth: 3 00:00:05 5...Be7 6.Bxh7+ Kh8 7.Bd3 Kg8 +- (2.50) Depth: 4 00:00:05 5...Be7 6.Bxh7+ Kh8 7.Bd3 Kg8 8.Kh2 +- (2.91) Depth: 5 00:00:05 42kN 5...Bg5 6.Bxh7+ Kh8 7.Bd3 Kg8 8.Kh2 +- (2.90) Depth: 5 00:00:05 42kN 5...h6 6.gxh4 Qxh4 7.Rf1 Bh3+ 8.Kh2 Bxf1+ 9.Kg1 +- (2.89) Depth: 5 00:00:05 49kN 5...h6 6.Qb3 Be7 7.Qxb7 Qd7 +- (2.33) Depth: 5 00:00:05 49kN 5...h6 6.Qb3 Qg5 7.Ne4 Bf3+ 8.Kg1 Qg4 +- (2.27) Depth: 6 00:00:06 358kN 5...Qg5 6.Bxh7+ Kh8 7.Rg1 Bf3+ 8.Kh2 Bxg3+ 9.Rxg3 Qh4+ 10.Kg1 Qxg3+ 11.Kf1 +- (2.26) Depth: 6 00:00:07 409kN 5...Qg5 6.Bxh7+ Kh8 7.Nf1 Bf3+ 8.Kg1 Qg4 9.Qg6 +- (1.92) Depth: 6 00:00:07 409kN 5...Qg5 6.Bxh7+ Kh8 7.Nf1 Bf3+ 8.Kg1 Qg4 9.Qg6 Be7 10.Qxg4 Bxg4 +- (2.27) Depth: 7 00:00:08 1212kN 5...Qg5 6.Bxh7+ Kh8 7.Nf1 Bf3+ 8.Kg1 Qg4 9.Qh2 b5 10.Bd3 +- (2.34) Depth: 8 00:00:14 3342kN 5...h6 6.Qb3 Qg5 7.Ne4 Bf3+ 8.Kg1 Qg4 9.Qxd5+ Rf7 10.b3 +- (2.33) Depth: 8 00:00:14 3342kN 5...h6 6.Nf1 Bf3+ 7.Kh2 Kh8 8.Qb3 Na5 9.Qb4 c6 10.Bxh6 gxh6 11.gxh4 +- (1.88) Depth: 8 00:00:25 7479kN 5...Bh3+ 6.Kxh3 Bxg3 7.Bxh7+ Kh8 8.Nf3 Rxf3 9.Kg2 Bxe1 10.Qf5 +- (1.87) Depth: 8 00:00:32 10609kN 5...Bh3+ 6.Kh1 Bxg3 7.Rg1 Qh4 8.Bxh7+ Kh8 9.Nf3 Rxf3 10.Qb3 ± (0.99) Depth: 8 00:00:35 11702kN 5...Bh3+ 6.Kxh3 Bxg3 7.Nf3 Rxf3 8.Bxh7+ Kh8 9.Kg2 Qf6 10.Bf5 Rf2+ 11.Kxg3 Rxc2 ± (0.98) Depth: 9 00:00:49 17975kN 5...Bh3+ 6.Kxh3 Bxg3 7.Nf3 Rxf3 8.Bxh7+ Kh8 9.Kg2 Qf6 10.Bf5 Rf2+ 11.Kxg3 Rxc2 12.Rh1+ Kg8 ± (1.14) Depth: 10 00:01:46 42971kN 5...Bh3+ 6.Kxh3 Bxg3 7.Nf3 Rxf3 8.Bxh7+ Kh8 9.Kg2 Qf6 10.Re2 Rf8 11.Nd2 Rf2+ 12.Rxf2 Qxf2+ 13.Kh3 Rf4 ± (1.11) Depth: 11 00:04:42 119925kN 5...Bxg3 6.Bxh7+ Kh8 7.Rh1 Qf6 8.Bd3+ Kg8 9.Rf1 Qh4 10.Rf6 gxf6 11.Bf5 ± (1.10) Depth: 11 00:05:36 140537kN 5...Bxg3 6.Bxh7+ Kh8 7.Rh1 Qf6 8.Bd3+ Kg8 9.Rf1 Be1 ± (0.74) Depth: 11 00:06:30 160843kN 5...Bxg3 6.Bxh7+ Kh8 7.Rh1 Qg5 8.Bd3+ Bh4 9.Rxh4+ Qxh4 10.Nf3 Bxf3+ 11.Kg1 ² (0.34) Depth: 12 00:12:48 314963kN 5...Bxg3 6.Bxh7+ Kh8 7.Rh1 Qg5 8.Bg8+ Kxg8 9.Qh7+ Kf7 10.Nb3 Bf3+ 11.Kxf3 Qg4+ 12.Kxg4 Bf4 ² (0.34) Depth: 12 00:13:59 342786kN 5...Bh3+ 6.Kxh3 Bxg3 7.Nf3 Rxf3 8.Bxh7+ Kh8 9.Kg2 Bxe1 10.Kxf3 Qf6+ 11.Kg2 g6 12.Kg1 Kxh7 13.Be3 ² (0.33) Depth: 12 00:15:04 365843kN 5...Bh3+ 6.Kxh3 Bxg3 7.Nf3 Rxf3 8.Bxh7+ Kh8 9.Kg2 Bxe1 10.Kxf3 Qf6+ 11.Bf4 g5 12.Qf5 Qxf5 13.Bxf5 gxf4 = (0.24) Depth: 12 00:21:57 530746kN 5...Qd6 6.gxh4 Rf2+ 7.Kxf2 Qh2+ 8.Ke3 Qg3+ 9.Nf3 Re8+ 10.Kd2 Rxe1 11.Bxh7+ Kh8 12.Nxe1 Qh2+ 13.Kd3 Qh3+ 14.Nf3 Qxf3+ 15.Kd2 Qf2+ 16.Kd3 Qf1+ 17.Qe2 = (0.23) Depth: 12 00:31:14 756934kN 5...Qd6 6.gxh4 Rf2+ 7.Kxf2 Qh2+ 8.Ke3 Qg3+ 9.Nf3 Re8+ 10.Kd2 Rxe1 11.c4 Bxf3 12.Kc3 Qxh4 13.Bd2 Qxd4+ 14.Kb3 Qb6+ = (0.17) Depth: 12 00:34:27 832239kN 5...Qd6 6.gxh4 Rf2+ 7.Kxf2 Qh2+ 8.Ke3 Qg3+ 9.Nf3 Re8+ 10.Kd2 Rxe1 11.Bxh7+ Kh8 12.Nxe1 g6 13.Bxg6 Qh2+ 14.Kd3 Qh3+ 15.Kd2 Qh2+ = (0.00) Depth: 13 00:51:51 1252498kN 5...Bh3+ 6.Kxh3 Bxg3 7.Nf3 Rxf3 8.Bxh7+ Kh8 9.Kg2 Bxe1 10.Kxf3 Qf6+ 11.Bf4 g5 12.Qf5 Rf8 13.Bxg5 Qxf5+ 14.Kg2 = (-0.01) Depth: 13 00:57:24 1361256kN 5...Bh3+ 6.Kxh3 Bxg3 7.Nf3 Rxf3 8.Kg2 Bxe1 9.Kxf3 Qh4 10.Ke2 Re8+ 11.Kd1 µ (-1.04) Depth: 13 01:23:04 1933406kN (Blass, Tel-aviv 10.02.2002) I went back with yace one ply and here is yace analysis after learning that 5.hxg3 is -1.04 pawns for white and I give analysis in the end of this post Yace learned that white is losing a pawn from the initial position. I remember that I could not prove that Nxf2 wins more than a pawn some years ago but it seems to be clearly the best move(I used Genius3 with p100 and many hours with next best in the first time that I analyzed the game and I found that there are a lot of alternatives that lose only 1 pawn but I could prove that white is losing at least a pawn by a tree) A pawn may be 0.9 pawn based on the evaluation of genius and I do not remember an exact number. I remember that even in the first move white had many alternatives to lose only a pawn based on analysis if white does not capture the knight. [D]r2q1rk1/ppp3pp/2n5/3p4/3P2bb/2PB2p1/PPQN2KP/RNB1R3 w - - 0 1 Analysis by Yace 0.99.56: 5.Bxh7+ Kh8 6.hxg3 Qf6 +- (2.08) Depth: 3 00:00:00 5.Bxh7+ Kh8 6.hxg3 Qf6 +- (2.08) Depth: 3 00:00:00 5.Bxh7+ Kh8 6.hxg3 Qf6 +- (2.08) Depth: 3 00:00:00 5.Bxh7+ Kh8 6.hxg3 Qf6 +- (2.08) Depth: 4 00:00:00 5.Bxh7+ Kh8 6.hxg3 Qf6 +- (2.08) Depth: 4 00:00:00 5.Bxh7+ Kf7 6.hxg3 g5 +- (2.48) Depth: 4 00:00:00 5.Bxh7+ Kh8 6.hxg3 Qf6 7.Bd3 +- (2.61) Depth: 4 00:00:00 5.Bxh7+ Kh8 6.hxg3 Qf6 7.Rf1 Qh6 8.gxh4 Qxh7 9.Qxh7+ Kxh7 10.Rxf8 Rxf8 +- (2.28) Depth: 5 00:00:00 14kN 5.Bxh7+ Kh8 6.hxg3 Qg5 7.Rg1 Bf5 8.Bxf5 Rxf5 +- (2.44) Depth: 6 00:00:00 74kN 5.Bxh7+ Kh8 6.hxg3 Qg5 7.Rg1 Bf3+ 8.Kh2 Bxg3+ 9.Rxg3 Qh4+ 10.Kg1 Qxg3+ 11.Kf1 +- (2.04) Depth: 7 00:00:00 142kN 5.Bxh7+ Kh8 6.hxg3 Qg5 7.Nf1 Bf3+ 8.Kg1 Qg4 9.Qg6 +- (1.92) Depth: 7 00:00:00 142kN 5.Bxh7+ Kh8 6.hxg3 Bh3+ 7.Kxh3 Bxg3 8.Re4 dxe4 9.Bg6 Qh4+ 10.Kg2 +- (1.52) Depth: 8 00:00:03 1074kN 5.Bxh7+ Kh8 6.Rf1 gxh2 7.Kh1 Qd6 8.Bd3 Rxf1+ 9.Bxf1 Rf8 10.Na3 ² (0.58) Depth: 8 00:00:08 2941kN 5.Bxh7+ Kh8 6.Rf1 gxh2 7.Kh1 Qg5 8.Bd3 Be2 9.Ne4 Rxf1+ 10.Kxh2 = (0.18) Depth: 9 00:00:23 8268kN 5.Bxh7+ Kh8 6.Rf1 gxh2 7.Kh1 Qg5 = (0.18) Depth: 9 00:00:26 9515kN 5.Bxh7+ Kh8 6.hxg3 Bh3+ 7.Kxh3 Bxg3 8.Kxg3 Qg5+ 9.Kh3 Qh6+ 10.Kg2 Qg5+ 11.Kh3 = (0.00) Depth: 10 00:01:32 34966kN 5.Bxh7+ Kh8 6.hxg3 Bh3+ 7.Kxh3 Bxg3 8.Kxg3 Qg5+ 9.Kh3 Rf4 10.Re8+ Rxe8 11.Qg6 Qh4+ 12.Kg2 Rg4+ 13.Qxg4 Qxg4+ 14.Kh1 ³ (-0.40) Depth: 11 00:03:49 85288kN 5.Bxh7+ Kh8 6.hxg3 Qd6 7.gxh4 Rf2+ 8.Kxf2 Qh2+ 9.Ke3 Re8+ 10.Ne4 Qxc2 11.Na3 Rxe4+ 12.Bxe4 Qxe4+ 13.Kd2 µ (-0.73) Depth: 11 00:05:43 129050kN 5.Bxh7+ Kh8 6.hxg3 Qd6 7.gxh4 Rf2+ 8.Kxf2 Qh2+ 9.Ke3 Re8+ 10.Ne4 Qxc2 11.Bg6 Rxe4+ 12.Bxe4 Qxe4+ 13.Kd2 Qg2+ 14.Kd3 µ (-0.96) Depth: 12 00:17:24 396134kN (Blass, Tel-aviv 10.02.2002) Blass,U - Crafty 18.12 r2q1rk1/ppp3pp/2n5/3p4/3P1pbb/2PB2P1/PPQN1K1P/RNB1R3 w - - 0 1 Analysis by Yace 0.99.56: 4.gxh4 Qxh4+ 5.Kf1 Qxh2 6.Bxh7+ Kh8 +- (3.70) Depth: 1 00:00:00 4.Bxh7+ Kh8 5.gxh4 +- (4.42) Depth: 1 00:00:00 4.Bxh7+ Kh8 +- (4.42) Depth: 1 00:00:00 4.Bxh7+ Kh8 5.Bf5 +- (3.37) Depth: 2 00:00:00 4.Bxh7+ Kh8 5.Rd1 +- (2.35) Depth: 2 00:00:00 4.Bxh7+ Kh8 5.Kg1 +- (1.96) Depth: 2 00:00:00 4.gxh4 Kh8 +- (3.60) Depth: 2 00:00:00 4.gxh4 Qxh4+ 5.Kf1 Qxh2 6.Bxh7+ Kh8 +- (3.70) Depth: 2 00:00:00 4.gxh4 Qxh4+ 5.Kg1 Qxe1+ 6.Nf1 +- (3.30) Depth: 3 00:00:00 4.gxh4 Qxh4+ 5.Kf1 Bh3+ 6.Ke2 Bg4+ 7.Nf3 Bxf3+ 8.Kxf3 Qxe1 9.Bxh7+ Kh8 10.Bxf4 ² (0.68) Depth: 3 00:00:00 4.Bxh7+ Kh8 5.Kg1 Bh3 ± (0.90) Depth: 3 00:00:00 4.Bxh7+ Kh8 5.Kg1 fxg3 +- (1.96) Depth: 3 00:00:00 4.Bxh7+ Kh8 5.gxh4 Qxh4+ 6.Kg1 Qxe1+ 7.Nf1 +- (1.56) Depth: 4 00:00:00 4.Bxh7+ Kh8 5.Kg1 fxg3 6.Rf1 gxh2+ 7.Kxh2 Rxf1 8.Nxf1 +- (1.46) Depth: 4 00:00:00 4.Bxh7+ Kh8 5.Kg1 fxg3 6.Rf1 gxh2+ 7.Kxh2 Rf2+ 8.Rxf2 Bxf2 9.Kh1 ± (1.25) Depth: 6 00:00:00 91kN 4.Bxh7+ Kh8 5.Rh1 fxg3+ 6.Kg1 Qf6 7.Nf1 Qf2+ 8.Qxf2 gxf2+ 9.Kg2 ± (0.96) Depth: 7 00:00:01 362kN 4.Bxh7+ Kh8 5.Kg1 fxg3 6.Rf1 Qd6 7.Rxf8+ Rxf8 8.Nf1 gxh2+ 9.Qxh2 Rxf1+ 10.Kg2 ± (0.95) Depth: 8 00:00:03 1038kN 4.Bxh7+ Kh8 5.Kg1 fxg3 6.Rf1 Qd6 7.Bf5 Bxf5 8.Rxf5 gxh2+ 9.Kh1 ± (0.78) Depth: 9 00:00:10 3380kN 4.Bxh7+ Kh8 5.Rf1 fxg3+ 6.Kg2 gxh2 7.Kh1 Bf2 8.Qd3 Rf6 9.Na3 Qd6 10.Nc2 ² (0.42) Depth: 10 00:00:49 17859kN 4.Bxh7+ Kh8 5.Rf1 fxg3+ 6.Kg2 gxh2 7.Kh1 Qg5 8.Kxh2 Nxd4 9.cxd4 Bg3+ 10.Kg2 Bh3+ 11.Kh1 Bxf1 12.Qxc7 = (-0.01) Depth: 11 00:02:39 55878kN 4.Bxh7+ Kh8 5.Rf1 fxg3+ 6.Kg2 gxh2 7.Kh1 Qg5 = (-0.01) Depth: 11 00:03:21 74532kN 4.Bxh7+ Kh8 5.Rf1 fxg3+ 6.Kg2 gxh2 7.Kh1 Qg5 8.Rxf8+ Rxf8 9.Qg6 Bf3+ 10.Kxh2 Qf4+ 11.Kg1 Bf2+ 12.Kxf2 Be4+ 13.Nf3 Qxf3+ 14.Kg1 Bxg6 15.Bxg6 ³ (-0.41) Depth: 12 00:08:28 184598kN 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 µ (-0.96) Depth: 12 00:14:11 304910kN (Blass, Tel-aviv 10.02.2002) Blass,U - Crafty 18.12 r2q1rk1/ppp3pp/2n5/3p1p2/3P2bb/2PB4/PPQN1KPP/RNB1R3 w - - 0 1 Analysis by Yace 0.99.56: 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 µ (-0.96) Depth: 1 00:00:00 3.Kf1 Bxe1 4.Kxe1 ² (0.57) Depth: 1 00:00:00 3.Kf1 Bxe1 4.Kxe1 ² (0.57) Depth: 2 00:00:00 3.Kf1 Bxe1 4.Kxe1 ² (0.57) Depth: 3 00:00:00 3.Kf1 Bxe1 4.Bxf5 = (0.17) Depth: 4 00:00:00 3.Kf1 Bxe1 4.Kxe1 Qh4+ 5.Kf1 Qxh2 ³ (-0.68) Depth: 4 00:00:00 3.Kf1 Bxe1 4.Kxe1 Qh4+ 5.Kf1 Qxh2 6.Na3 ³ (-0.57) Depth: 5 00:00:00 7kN 3.Kf1 Bxe1 4.Kxe1 Qh4+ 5.Kf1 Qxh2 6.Nf3 Bxf3 µ (-0.77) Depth: 6 00:00:00 22kN 3.Kf1 Bxe1 4.Kxe1 Qh4+ 5.Kf1 Qxh2 6.Ne4 fxe4+ 7.Bf4 µ (-1.17) Depth: 7 00:00:00 36kN 3.Kf1 Bxe1 4.Kxe1 Qh4+ 5.Kf1 Nxd4 6.cxd4 Qe7 µ (-1.17) Depth: 7 00:00:00 61kN 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 µ (-0.96) Depth: 7 00:00:00 61kN 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 µ (-0.96) Depth: 8 00:00:00 75kN 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 µ (-0.96) Depth: 9 00:00:00 106kN 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 µ (-0.96) Depth: 10 00:00:00 198kN 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 µ (-0.96) Depth: 11 00:00:01 561kN 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 µ (-0.96) Depth: 12 00:00:04 1879kN 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 µ (-0.96) Depth: 13 00:00:10 3985kN (Blass, Tel-aviv 10.02.2002) Blass,U - Crafty 18.12 r2q1rk1/ppp1b1pp/2n5/3p1p2/3P2b1/2PB4/PPQN1nPP/RNB1R1K1 w - - 0 1 Analysis by Yace 0.99.56: 2.Kxf2 Bh4+ 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 Nxd4 µ (-0.96) Depth: 1 00:00:00 2.Rxe7 Nxd3 µ (-0.77) Depth: 1 00:00:00 2.Rxe7 Nxd3 µ (-0.77) Depth: 2 00:00:00 2.Rxe7 Nxd3 3.Re6 Nf4 µ (-1.10) Depth: 3 00:00:00 2.Kxf2 Bh4+ 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 Nxd4 µ (-0.96) Depth: 3 00:00:00 2.Kxf2 Bh4+ 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 Nxd4 µ (-0.96) Depth: 4 00:00:00 2.Kxf2 Bh4+ 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 Nxd4 µ (-0.96) Depth: 5 00:00:00 6kN 2.Kxf2 Bh4+ 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 Nxd4 µ (-0.96) Depth: 6 00:00:00 21kN 2.Kxf2 Bh4+ 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 Nxd4 µ (-0.96) Depth: 7 00:00:00 49kN 2.Kxf2 Bh4+ 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 Nxd4 µ (-0.96) Depth: 8 00:00:00 141kN 2.Kxf2 Bh4+ 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 Nxd4 µ (-0.96) Depth: 9 00:00:01 485kN 2.Kxf2 Bh4+ 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 Nxd4 µ (-0.96) Depth: 10 00:00:04 1301kN 2.Kxf2 Bh4+ 3.g3 f4 4.Bxh7+ Kh8 5.Kg2 fxg3 6.hxg3 Qd6 7.gxh4 Nxd4 µ (-0.96) Depth: 11 00:00:13 4096kN (Blass, Tel-aviv 10.02.2002) Uri
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