Author: Uri Blass
Date: 01:21:29 01/30/03
Go up one level in this thread
On January 30, 2003 at 02:28:42, Tony Werten wrote: >On January 29, 2003 at 19:39:27, Geo Disher wrote: > >>On January 29, 2003 at 13:25:41, Thomas Lagershausen wrote: >> >>>[D]2b2rk1/rp5p/3p1qpQ/2nPpp2/p1P5/R7/PPBN1PPP/4R1K1 w - - avoid 21.b4? >>> >>>According to Garry Kasparov 21.b4? was the desicive mistake of the game in >>>whites play.See also: >>>http://www.worldchessrating.com/521916158.html?448451195843518 >>> >>>So is there a program in the world that can handle this position right? >>> >>>Gentleman start your engines. >>> >>>TL >>> >>>PS: Don´t take the headline too serios. >>New game >>2b2rk1/rp5p/3p1qpQ/2nPpp2/p1P5/R7/PPBN1PPP/4R1K1 w - - 0 1 >>New game >>2b2rk1/rp5p/3p1qpQ/2nPpp2/p1P5/R7/PPBN1PPP/4R1K1 w - - 0 1 >> >>Analysis by Fritz 8: >> >>1.b4 axb3 2.Rxa7 bxc2 3.Qe3 f4 4.Qf3 Bf5 >> ± (0.78) Depth: 7/18 00:00:00 37kN >>1.b4 axb3 2.Rxa7 bxc2 3.Qe3 f4 4.Qf3 Bf5 >> ± (0.78) Depth: 8/16 00:00:00 148kN >>1.b4 axb3 2.Rxa7 bxc2 3.Rc1 f4 4.Nb3 Bf5 5.Nxc5 >> ± (0.78) Depth: 9/20 00:00:00 359kN >>1.b4 axb3 2.Rxa7 bxc2 3.Rc1 f4 4.Nb3 e4 5.Nxc5 dxc5 6.Ra8 f3 >> ± (0.81) Depth: 10/25 00:00:01 809kN >>1.b4 axb3 2.Rxa7 bxc2 3.Rc1 f4 4.Rxc2 e4 5.Rc1 Bg4 6.Rb1 >> ± (0.81) Depth: 11/28 00:00:02 1817kN >>1.b4 axb3 2.Rxa7 bxc2 3.Rc1 f4 4.Rxc2 e4 5.h3 Bd7 6.Rc1 Rc8 >> ² (0.66) Depth: 12/30 00:00:05 4677kN >>1.b4 axb3 2.Rxa7 bxc2 3.Rc1 f4 4.Rxc2 e4 5.h3 Qa1+ 6.Nf1 Qf6 7.Re2 Bd7 >> ² (0.59) Depth: 13/31 00:00:19 16592kN >>1.b4 axb3 2.Rxa7 bxc2 3.Rc1 f4 4.Rxc2 e4 5.h3 Bf5 6.Nf1 e3 7.Re2 Bd3 >> ² (0.34) Depth: 14/34 00:00:41 35803kN >>1.b4 axb3 2.Rxa7 bxc2 3.Rc1 f4 4.Rxc2 e4 5.Nf1 e3 6.Re2 exf2+ 7.Kh1 Nd3 8.g4 >> = (0.22) Depth: 15/34 00:03:05 151682kN >>1.b4 axb3 2.Rxa7 bxc2 3.Rc1 f4 4.Rxc2 e4 5.h3 Bf5 6.Nb3 e3 7.Re2 >> ² (0.38) Depth: 16/39 00:09:41 497757kN >>1.b4-- >> = (0.09) Depth: 17/40 00:15:46 822716kN >>1.b4 axb3 2.Rxa7 bxc2 3.Rc1 f4 4.Rxc2 e4 5.Nf1 e3 6.Nxe3 fxe3 >> = (-0.16) Depth: 17/57 00:17:13 908059kN >>1.Nf3! >> = (-0.12) Depth: 17/57 01:02:46 3375253kN >>1.Nf3! >> = (0.03) Depth: 17/57 01:09:21 3724684kN >>1.Nf3 e4 2.Ng5 b6 3.Rh3 Qh8 4.Rf1 Qg7 5.Qxg7+ Rxg7 6.b4 axb3 7.axb3 >> = (0.06) Depth: 17/57 01:15:06 4026168kN >>1.Qe3! >> = (0.09) Depth: 17/57 01:20:51 4352210kN >>1.Qe3 e4 2.Qc3 Qxc3 3.Rxc3 Ra6 4.b4 axb3 5.axb3 Ra3 6.f3 exf3 7.Nxf3 f4 >> = (0.13) Depth: 17/57 01:23:43 4515363kN >>I unfortunatly look at some of these possitions and just wonder what Deep Blue >>would have done?:( > >If the search doesn't get blown up, singular extensions will help here. >Personnally I think it will blow up. > >Tony I think that it will not blow up if you use singular extension only in the right positions. Having singular extensions(I do not have them today) does not mean that you have to use them in every node of the tree. Uri
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