Author: Uri Blass
Date: 01:45:56 01/17/02
Go up one level in this thread
On January 16, 2002 at 21:31:05, Gian-Carlo Pascutto wrote: >On January 16, 2002 at 13:32:51, Eduard Nemeth wrote: > >>[D]r2r1bk1/ppqb1ppp/2p1p3/6P1/2PPN3/PB3Q2/1P3P1P/1K1RR3 w - - 0 24 >> >>White is move: >>24.Nf6+!! >> >>Find your program this move? > >Sjeng thinks there is another way to win: > >Middlegame phase. >Clearing hash... >Time for move : 100000000 > 2 -19 143 179 h4 Be7 > 2 -19 143 332 h4 Be7 > 3 -9 143 813 h4 e5 c5 > 3 -8 143 1083 Qg3 ! > 3 17 143 1723 Qg3 Qxg3 hxg3 > 4 -14 143 3576 Qg3 Qb6 Qf3 Be7 > 4 -14 143 6115 Qg3 Qb6 Qf3 Be7 > 5 4 143 11324 Qg3 Qa5 Rd2 Be7 Qc7 > 5 4 149 17552 Qg3 Qa5 Rd2 Be7 Qc7 > 6 -9 154 43188 Qg3 Qb6 Qe3 Be7 f4 Qc7 > 6 -9 160 68155 Qg3 Qb6 Qe3 Be7 f4 Qc7 > 7 9 193 210681 Qg3 Qb6 Rd2 Qa5 Qf4 Be7 h4 > 7 9 259 432127 Qg3 Qb6 Rd2 Qa5 Qf4 Be7 h4 > 8 1 352 842159 Qg3 Qc8 Qf4 b6 Nd6 Bxd6 Qxd6 c5 d5 > 8 2 742 2219401 Bc2 ! > 8 14 945 2917774 Bc2 Be7 Qh3 g6 Qg3 Qa5 Qe5 Qxe5 dxe5 > 9 15 1780 5973239 Bc2 Be7 Qh3 g6 Qg3 Rdc8 Qxc7 Rxc7 f4 b6 > 9 16 2922 10138312 g6 ! > 9 17 3159 11009608 g6 hxg6 Ng5 f6 Nxe6 Bxe6 Rxe6 Re8 Rxe8 Rxe8 h4 >10 23 3779 13437319 g6 fxg6 Ng5 Bd6 Qh3 h6 c5 hxg5 Bxe6+ Bxe6 Qxe6+ Kh8 >cxd6 Qxd6 Re5 >10 24 7465 26017128 Qh3 ! >10 56 10123 35369660 Qh3 Qf4 Bc2 Kh8 Nf6 h6 Nxd7 Rxd7 gxh6 gxh6 Qe3 Qxh2 >11 92 20911 74541546 Qh3 Qf4 Bc2 h6 gxh6 Qxh6 Qxh6 gxh6 Rd3 b5 Rg1+ Kh8 >Rf3 Be8 >11 92 23866 84916225 Qh3 Qf4 Bc2 h6 gxh6 Qxh6 Qxh6 gxh6 Rd3 b5 Rg1+ Kh8 >Rf3 Be8 >12 62 33055 117991466 Qh3 Qf4 Bc2 Kh8 Nf6 h6 Qd3 g6 h4 Qxh4 Nxd7 Rxd7 gxh6 >Bxh6 Rh1 >12 63 53454 190653636 g6 ! >12 100 70146 255840347 g6 fxg6 Ng5 Bc8 d5 Bc5 dxe6 Rf8 Qg3 Qxg3 fxg3 Be7 h4 >13 112 86096 317913807 g6 fxg6 Ng5 Bc8 Qh3 h6 Nxe6 Qa5 Re5 c5 d5 Bd6 Ree1 >Qc7 <Nxc7> >13 112 128235 460604640 g6 fxg6 Ng5 Bc8 Qh3 h6 Nxe6 Qa5 Re5 c5 d5 Bd6 Ree1 >Qc7 <Nxc7> >14 162 436817 1679373965 g6 !! >14 165 552512 2147198986 g6 fxg6 Ng5 Bc8 c5 Re8 Nxh7 Bxc5 dxc5 Kxh7 Qh3+ >Kg8 Rxe6 Bxe6 Bxe6+ Rxe6 Qxe6+ Qf7 Qxf7+ Kxf7 Rd7+ Kg8 Rxb7 Re8 > >-- >GCP 1.65 is not a convincing score to say that white is winning black can sacrifice the exchange by the line g6 fxg6 Ng5 Kh8 with some practical chances for a draw. Here is Deep Fritz's analysis of the root position It can see clearly a bigger score for white with Nf6+ r2r1bk1/ppqb1ppp/2p1p3/6P1/2PPN3/PB3Q2/1P3P1P/1K1RR3 w - - 0 1 Analysis by Deep Fritz: 24.Qxf7+-- -+ (-5.06) Depth: 1/2 00:00:00 24.Qxf7+-- Kxf7 -+ (-7.53) Depth: 1/3 00:00:00 24.g6! -+ (-3.78) Depth: 1/3 00:00:00 24.g6! hxg6 ³ (-0.41) Depth: 1/3 00:00:00 24.h3! = (-0.22) Depth: 1/11 00:00:00 24.h4! = (0.00) Depth: 1/11 00:00:00 24.h4 b5 25.Kc2 = (-0.19) Depth: 2/6 00:00:00 24.h4 Bd6 25.h5 = (-0.03) Depth: 3/13 00:00:00 24.h4 b5 25.c5 b4 = (0.03) Depth: 4/15 00:00:00 2kN 24.h4 c5 25.d5 exd5 26.Rxd5 b5 27.cxb5 = (-0.06) Depth: 5/16 00:00:00 6kN 24.h4 c5 25.d5 exd5 26.cxd5 Bd6 27.h5 = (0.00) Depth: 6/18 00:00:00 16kN 24.h4 c5 25.d5 exd5 26.cxd5 c4 27.d6 Qc6 28.Bc2 = (0.13) Depth: 7/22 00:00:00 54kN 24.h4 c5 25.d5 exd5 26.cxd5 c4 27.d6 Qc6 28.Bc2 = (0.13) Depth: 8/24 00:00:00 122kN 24.h4 c5 25.d5 exd5 26.cxd5 c4 27.d6 Qc6 28.Bc2 Rac8 = (0.06) Depth: 9/25 00:00:00 351kN 24.Qh3! = (0.09) Depth: 9/30 00:00:02 1191kN 24.Qh3! Be7 25.Bc2 g6 26.Qg3 Qb6 27.c5 Qb5 ² (0.31) Depth: 9/30 00:00:02 1520kN 24.Qh3 Be7 25.Bc2 g6 26.Qg3 Qa5 27.Qe5 b5 28.c5 b4 = (0.22) Depth: 10/28 00:00:03 2022kN 24.Bc2! = (0.25) Depth: 10/29 00:00:05 3342kN 24.Bc2! Be7 25.Nf6+ Bxf6 26.gxf6 g6 27.h4 h5 28.Qg3 Qa5 29.Re5 ² (0.31) Depth: 10/29 00:00:06 3920kN 24.Bc2 Be7 25.Nf6+ Bxf6 26.gxf6 g6 27.Qe3 Kh8 28.Qe5 ² (0.41) Depth: 11/30 00:00:14 5844kN 24.Bc2 Be7 25.Nf6+ Bxf6 26.gxf6 g6 27.Qg3 Qa5 28.Qe5 Qa6 ² (0.41) Depth: 12/31 00:00:22 12350kN 24.g6! ² (0.44) Depth: 12/32 00:00:33 18619kN 24.g6! fxg6 25.Ng5 Re8 26.Qh3 h6 27.Nxe6 Bxe6 28.Rxe6 Qf7 ± (0.94) Depth: 12/35 00:00:46 26595kN 24.g6 fxg6 25.Ng5 Re8 26.c5 Re7 ± (0.88) Depth: 13/34 00:01:08 40977kN 24.Nf6+! ± (0.91) Depth: 13/39 00:01:40 58875kN 24.Nf6+! gxf6 25.gxf6 e5 26.Rxe5 c5 +- (2.31) Depth: 13/40 00:03:40 129473kN 24.Nf6+! +- (2.63) Depth: 14/38 00:06:50 246862kN 24.Nf6+! +- (2.94) Depth: 15/41 00:15:10 558011kN (Blass, Tel-aviv 17.01.2002) I do not like the fact that fritz does not show main line so here is what happened later so here is what happens 3 plies later if 24.Nf6+ gxf6 25.gxf6 [D]r2r1bk1/ppqb1p1p/2p1pP2/8/2PP4/PB3Q2/1P3P1P/1K1RR3 b - - 0 1 Analysis by Deep Fritz: 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6 26.Rg1+ Kh8 27.Qg3 Bh6 28.f4 -+ (-1.91) Depth: 6/20 00:00:00 80kN 25...Qb6-- -+ (-1.59) Depth: 7/20 00:00:00 102kN 25...Qb6-- 26.Bc2 Qa5 27.Re5 b5 28.Qh5 Bd6 29.Qxh7+ Kf8 µ (-0.81) Depth: 7/25 00:00:00 152kN 25...Kh8! µ (-0.84) Depth: 7/25 00:00:00 154kN 25...Bc8! µ (-0.88) Depth: 7/25 00:00:00 261kN 25...Qa5! µ (-0.91) Depth: 7/25 00:00:00 354kN 25...Qa5! 26.Bc2 h6 27.Rg1+ Kh8 28.Qg3 Qg5 29.Qxg5 hxg5 30.Rxg5 µ (-1.09) Depth: 7/25 00:00:00 409kN 25...Qa5-- µ (-0.78) Depth: 8/27 00:00:00 504kN 25...Qa5-- µ (-0.78) Depth: 8/27 00:00:01 573kN 25...Kh8! µ (-0.81) Depth: 8/27 00:00:01 602kN 25...Kh8-- ³ (-0.50) Depth: 9/22 00:00:01 901kN 25...Kh8-- 26.Bc2 e5 27.Qh5 e4 28.Bxe4 Bf5 29.Bxf5 h6 +- (2.56) Depth: 9/29 00:00:01 1095kN 25...Qa5! +- (2.53) Depth: 9/29 00:00:02 1140kN 25...Qa5! 26.Bc2 +- (2.44) Depth: 9/29 00:00:02 1478kN 25...Bc8! +- (2.41) Depth: 9/29 00:00:02 1501kN 25...Bc8! 26.Qg4+ Kh8 27.Bc2 Qxh2 28.Rh1 +- (1.53) Depth: 9/29 00:00:03 2221kN 25...Bh6! +- (1.50) Depth: 9/29 00:00:04 2369kN 25...Bh6! 26.Rg1+ Kh8 27.Qh5 Qf4 28.Qxf7 ± (1.19) Depth: 9/29 00:00:04 2446kN 25...c5! ± (1.16) Depth: 9/29 00:00:05 3175kN 25...c5! 26.Rg1+ Kh8 27.Qh5 e5 28.Bc2 e4 29.Qg5 Bg4 30.Qxg4 Rxd4 ± (0.91) Depth: 9/29 00:00:05 3362kN 25...c5-- ± (1.22) Depth: 10/27 00:00:07 4285kN 25...c5-- 26.Rg1+ Kh8 27.Qh5 Qf4 28.Bc2 Bh6 29.Qxf7 Qf5 +- (5.94) Depth: 10/34 00:00:10 6537kN 25...b5! +- (5.91) Depth: 10/34 00:00:11 7113kN 25...b5! 26.Rg1+ Kh8 27.Qh5 Qf4 28.Qxf7 Bh6 29.Bc2 Qf5 +- (5.41) Depth: 10/35 00:00:13 7984kN 25...Bh6! +- (5.37) Depth: 10/35 00:00:13 8113kN 25...Bh6! 26.Rg1+ Kh8 27.Qh5 Qf4 28.Qxf7 e5 29.Qg7+ Bxg7 30.fxg7+ Kg8 +- (1.78) Depth: 10/35 00:00:14 8421kN 25...Bh6-- +- (2.09) Depth: 11/28 00:00:20 11726kN 25...Bh6-- 26.Rg1+ Kh8 27.Bc2 +- (5.12) Depth: 11/32 00:00:21 12849kN 25...e5! +- (5.09) Depth: 11/32 00:00:26 16155kN 25...e5! 26.Rxe5 Qd6 27.Rh5 Be7 28.fxe7 Qxe7 29.Rg1+ +- (3.12) Depth: 11/32 00:00:51 31134kN 25...e5-- +- (3.44) Depth: 12/35 00:01:19 47810kN 25...e5-- 26.Bc2 exd4 27.Rxd4 Qxh2 +- (4.44) Depth: 12/35 00:02:06 78139kN 25...e5-- +- (4.75) Depth: 13/35 00:03:29 132125kN 25...e5-- 26.Bc2 exd4 27.Qh5 d3 +- (5.75) Depth: 13/39 00:05:03 194007kN 25...Bh6! +- (5.72) Depth: 13/39 00:06:07 236859kN 25...Bh6! 26.Rg1+ Kh8 27.Bc2 Qf4 28.Qxf4 Bxf4 29.Rg7 h6 30.Rh7+ +- (5.59) Depth: 13/39 00:06:32 252594kN 25...Bh6-- +- (5.91) Depth: 14/37 00:06:58 269351kN 25...Bh6-- 26.Rg1+ Kh8 27.Bc2 Rg8 28.Qh5 e5 29.Qxh6 +- (7.06) Depth: 14/40 00:07:39 293002kN 25...e5! +- (7.03) Depth: 14/40 00:08:14 317022kN (Blass, Tel-aviv 17.01.2002) if 24.Nf6+ Kh8 25.Nxh7 [D]r2r1b1k/ppqb1ppN/2p1p3/6P1/2PP4/PB3Q2/1P3P1P/1K1RR3 b - - 0 1 Analysis by Deep Fritz: 25...Kxh7! ² (0.69) Depth: 1/4 00:00:00 25...Kxh7! 26.Qxf7 µ (-0.91) Depth: 1/4 00:00:00 25...Kxh7 26.Qxf7 Qxh2 µ (-0.91) Depth: 2/5 00:00:00 25...Kxh7 26.Qxf7 Qxh2 27.Bc2+ Kh8 µ (-0.72) Depth: 3/9 00:00:00 25...Kxh7 26.Qxf7 Qxh2 27.c5 ³ (-0.66) Depth: 4/11 00:00:00 1kN 25...Kxh7-- ³ (-0.34) Depth: 5/17 00:00:00 4kN 25...Kxh7-- ³ (-0.34) Depth: 5/17 00:00:00 6kN 25...Kxh7-- = (-0.03) Depth: 6/18 00:00:00 12kN 25...Kxh7-- = (-0.03) Depth: 6/18 00:00:00 15kN 25...Kxh7-- ² (0.28) Depth: 7/18 00:00:00 49kN 25...Kxh7-- ² (0.28) Depth: 7/18 00:00:00 58kN 25...Kxh7-- ² (0.59) Depth: 8/22 00:00:00 124kN 25...Kxh7-- ² (0.59) Depth: 8/22 00:00:00 142kN 25...Kxh7-- ± (0.91) Depth: 9/24 00:00:00 392kN 25...Kxh7-- 26.Qxf7 Qa5 27.Re5 Qxe5 28.dxe5 Bc5 29.Rxd7 Rxd7 30.Bc2+ Kh8 +- (6.78) Depth: 9/29 00:00:01 774kN 25...Bd6! +- (6.75) Depth: 9/29 00:00:01 820kN 25...Bd6! 26.Nf6 +- (6.72) Depth: 9/31 00:00:02 1551kN 25...Be7! +- (6.69) Depth: 9/31 00:00:02 1608kN 25...Be7! 26.Qxf7 Be8 27.Qxe6 Bh5 28.Qh3 Bg6+ 29.Bc2 Bxc2+ +- (2.84) Depth: 9/31 00:00:05 3194kN 25...Kg8! +- (2.81) Depth: 9/31 00:00:07 4555kN 25...Kg8! 26.g6 fxg6 27.Ng5 Qa5 28.Qf7+ Kh8 29.Qxg6 Qf5+ +- (2.72) Depth: 9/31 00:00:08 5372kN 25...Kg8 26.g6 Be8 27.Nxf8 +- (2.59) Depth: 10/30 00:00:12 7756kN 25...Kg8 26.g6 Be8 +- (2.72) Depth: 11/32 00:00:22 14113kN 25...Kg8-- +- (3.03) Depth: 12/34 00:00:43 28428kN 25...Kg8-- 26.g6 Be8 27.Ng5 f6 28.Bc2 fxg5 29.Qh3 +- (3.66) Depth: 12/36 00:01:30 58389kN 25...Be7! +- (3.62) Depth: 12/36 00:01:35 61660kN 25...Be7! 26.Qxf7 Be8 27.Qxe6 Bh5 28.Nf6 +- (2.81) Depth: 12/36 00:01:52 73502kN 25...Be7-- +- (3.12) Depth: 13/36 00:03:16 130021kN 25...Be7-- 26.Nf6 Bxf6 27.gxf6 Qa5 28.Qh3+ Kg8 29.Bc2 gxf6 30.d5 +- (8.44) Depth: 13/40 00:03:58 157174kN 25...Qa5! +- (8.41) Depth: 13/40 00:05:06 207354kN 25...Qa5! 26.Re5 Qxe5 27.dxe5 Kg8 28.g6 Be8 +- (6.81) Depth: 13/43 00:12:09 492934kN 25...Kg8! +- (6.78) Depth: 13/43 00:16:44 687602kN 25...Kg8! 26.g6 Be8 27.Ng5 f6 28.Bc2 fxg5 29.Qh3 +- (3.66) Depth: 13/43 00:18:56 774361kN (Blass, Tel-aviv 17.01.2002) for comparison after g6 fxg6 Ng5 r2r1bk1/ppqb2pp/2p1p1p1/6N1/2PP4/PB3Q2/1P3P1P/1K1RR3 b - - 0 1 Analysis by Deep Fritz: 25...Bxa3-- = (0.19) Depth: 1/4 00:00:00 25...Bxa3-- 26.Qf7+ Kh8 +- (1.78) Depth: 1/9 00:00:00 25...Qxh2! +- (1.56) Depth: 1/9 00:00:00 25...Qxh2! 26.Qf7+ Kh8 = (0.06) Depth: 1/9 00:00:00 25...Bd6! = (0.00) Depth: 1/10 00:00:00 25...Bd6! 26.Qf7+ Kh8 = (-0.09) Depth: 1/10 00:00:00 25...Bd6 26.Qf7+ Kh8 27.Nxe6 = (-0.09) Depth: 2/10 00:00:00 25...Bd6-- = (0.22) Depth: 3/11 00:00:00 25...Bd6-- 26.Qh3 h6 27.Nxe6 Bxe6 28.Qxe6+ ² (0.31) Depth: 3/11 00:00:00 1kN 25...Bd6 26.Qh3 h6 27.Nxe6 Bxe6 28.Qxe6+ ² (0.31) Depth: 4/12 00:00:00 3kN 25...Bd6 26.Qh3 h6 27.c5 Bxh2 28.Nxe6 ² (0.37) Depth: 5/16 00:00:00 8kN 25...Bd6-- ² (0.69) Depth: 6/19 00:00:00 22kN 25...Bd6-- 26.c5 Bxh2 27.Bxe6+ Bxe6 28.Nxe6 Qf7 ± (0.78) Depth: 6/19 00:00:00 24kN 25...Bd6-- ± (1.09) Depth: 7/20 00:00:00 76kN 25...Bd6-- 26.c5 Bxh2 27.Qh3 h6 28.Bxe6+ Bxe6 +- (1.62) Depth: 7/22 00:00:00 92kN 25...Bc8! +- (1.59) Depth: 7/22 00:00:00 97kN 25...Bc8! 26.c5 Re8 27.Qh3 h6 28.Nxe6 Bxe6 29.Bxe6+ Kh7 ± (0.97) Depth: 7/23 00:00:00 147kN 25...Re8! ± (0.94) Depth: 7/23 00:00:00 199kN 25...Re8! 26.c5 Be7 27.Nxe6 Bxe6 28.Qg3 Qxg3 29.Bxe6+ Kf8 ± (0.72) Depth: 7/23 00:00:00 214kN 25...Re8 26.c5 Be7 27.Nxe6 Bxe6 28.Qg3 Qxg3 29.Bxe6+ Kf8 30.hxg3 ± (0.72) Depth: 8/22 00:00:00 304kN 25...Re8 26.Qh3 h6 27.Nxe6 Bxe6 28.Rxe6 Qd7 29.c5 Kh7 30.Qg4 Rxe6 31.Bxe6 ± (0.87) Depth: 9/27 00:00:01 725kN 25...Re8 26.c5 Qd8 27.Qf7+ Kh8 28.Bxe6 Bxe6 29.Nxe6 Qe7 30.Qxe7 Rxe7 31.d5 ± (0.97) Depth: 10/30 00:00:04 2591kN 25...Re8-- ± (1.28) Depth: 11/32 00:00:14 8853kN 25...Re8-- 26.Bc2 Qd8 27.Qf7+ Kh8 +- (1.78) Depth: 11/35 00:00:23 14731kN 25...Bc8! +- (1.75) Depth: 11/35 00:00:24 15368kN 25...Bc8! 26.c5 Re8 27.Bc2 Rd8 28.Nxh7 Bxc5 29.dxc5 Rxd1+ 30.Rxd1 Kxh7 31.Qh5+ +- (1.50) Depth: 11/35 00:00:26 16467kN 25...Bc8 26.c5 Re8 27.Bc2 b6 28.Bxg6 +- (1.69) Depth: 12/33 00:00:45 29278kN 25...c5! +- (1.66) Depth: 12/36 00:01:58 79443kN 25...Kh8! +- (1.62) Depth: 12/36 00:02:13 88900kN 25...Kh8! 26.Nf7+ Kg8 27.Nxd8 Rxd8 +- (1.59) Depth: 12/36 00:02:46 110355kN 25...Kh8 26.Nf7+ Kg8 27.Nxd8 Rxd8 28.c5 b6 29.Qe3 Qc8 +- (1.62) Depth: 13/38 00:04:20 172662kN (Blass, Tel-aviv 17.01.2002) Uri
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