Author: Uri Blass
Date: 11:04:29 01/25/02
Go up one level in this thread
On January 25, 2002 at 13:51:00, Mark Young wrote: >On January 25, 2002 at 13:34:33, Uri Blass wrote: > >>On January 25, 2002 at 13:22:37, Roy Eassa wrote: >> >>> >>>The original commentary said that the reason 1...Nh8 was best was to move it to >>>f7 then to g5 then to sacrifice it on h3. Does any engine show this occurring >>>in the PV? >> >>It seems to me that after >>1...Nh8 2.Rf1 Nf7 3.h4 Ng5 4.hxg5 you can resign >> >>1...Nh8 2.Rf1 Nf7 3.h4 is shown in the pv that was posted. >> >>Uri > >Other programs are at a loss when it comes to this position. Most programs think >that white is better or equal. Only the Tigers are albe to solve this position >that I can find. one example below. > >New position >r1bq2k1/p5bp/3p1nnr/P1pPp3/2P1Pp2/1NN2R1P/4B1P1/1R1QB1K1 b - - 0 1 > >Analysis by Crafty 18.13: > >1...Rb8 > ± (0.95) Depth: 1/5 00:00:00 >1...Rb8 2.Bf2 > ± (1.09) Depth: 2/5 00:00:00 >1...Nh4 2.Rd3 > ± (0.87) Depth: 2/5 00:00:00 >1...Nh4 2.Bxh4 Rxh4 3.Qf1 > ± (0.97) Depth: 3/6 00:00:00 >1...Rb8 2.Bf2 Rh5 > ± (0.89) Depth: 3/6 00:00:00 >1...Rb8 2.Bd2 Nh4 3.Rf1 > ± (0.90) Depth: 4/9 00:00:00 >1...Rb8 2.Rf1 Nh4 3.Bf2 Bd7 > ± (0.82) Depth: 5/12 00:00:00 >1...Rb8 2.Rf1 Ne8 3.Bf2 Qg5 4.Qd2 > ± (0.99) Depth: 6/16 00:00:00 40kN >1...Nh4 2.Rf1 Nd7 3.Bg4 Qg5 4.Be6+ Kh8 > ± (0.86) Depth: 6/16 00:00:00 70kN >1...Nh4 2.Bxh4 Rxh4 3.Qf1 Rb8 4.Qf2 Rh5 5.Bd3 > ± (0.86) Depth: 7/17 00:00:01 131kN >1...Nh4 2.Rf1 Nxg2 3.Kxg2 Bxh3+ 4.Kf2 Bxf1 5.Kxf1 Rg6 > ± (0.94) Depth: 8/22 00:00:01 351kN >1...Ne8 2.Qd3 Qg5 3.Bd1 Bd7 4.a6 Nc7 5.Ra1 > ² (0.65) Depth: 8/22 00:00:03 867kN >1...Ne8 2.Rf1 Qg5 3.Bg4 Bxg4 4.Qxg4 Qxg4 5.hxg4 Rb8 6.Bf2 Nh4 > ² (0.53) Depth: 9/22 00:00:04 1522kN >1...Ne8 2.Bd2 Qg5 3.Kh1 Nh4 4.Rf2 Rb8 5.Qf1 Rg6 6.Bd3 > ² (0.56) Depth: 10/22 00:00:08 3342kN >1...Ne8 2.Bd2 Qg5 3.Kh1 Nh4 4.Rf2 Rb8 5.Qf1 Rg6 6.Nb5 Rb7 > ² (0.46) Depth: 11/27 00:00:19 7937kN >1...Ne8 2.Kh2 Qg5 3.Kh1 Nh4 4.Rf2 Qg3 5.Rb2 Qg5 6.Bg4 Rg6 7.Bxc8 Rxc8 > ² (0.40) Depth: 12/29 00:01:06 28325kN >1...Ne8 2.Bd2 Qg5 3.Kh1 Nh4 4.Rf2 Nf6 5.Qf1 Rb8 6.Bc1 Rg6 7.Bd3 Bd7 > ² (0.39) Depth: 13/29 00:05:38 139951kN > >(Young, MyTown 25.01.2002) The question is if Nh8 is really winning. The fact that tiger plays this move does not prove that it is winning and the real test that I did not do is if tiger can win other programs with black. Uri
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