Author: Uri Blass
Date: 01:04:10 12/31/01
Go up one level in this thread
On December 30, 2001 at 17:11:10, Peter Kappler wrote: >On December 30, 2001 at 14:31:08, Fabio Cavicchio wrote: > >>[D] r1nqr1k1/1p3ppp/4b3/pPP5/3p4/P4PN1/4PP1P/R2QKB1R b KQ - 0 16 >> >>I've created this position for tests, Crafty says that black is >>better (B +0.70 pawns, positional advantage) other commercial >>programs claims that white is better (W +0.50 pawns, because >>white is a pawn up). So the difference in evaluation is 1.2 pawns (!). >> >>Who is right ? Any human evaluation ? >> >>Greetings, >>Fabio. > > >What commercial engines are you using? Chess Tiger 14 thinks it's equal, but >seems to think 1...Bc4 is the best first move. I think 1...Ne7 might be better, >instead. > >I'd definitely rather be Black here. > >-Peter Here is Deep Fritz's opinion Deep Fritz believes that Qh4 is the best move for black but white is sligthly better. Deep Fritz considers Ne7 at this moment after almost 11 hours of search this move is move number 11 out of 37 legal moves You can see that Deep Fritz was very slow in the first minute and it happens to me often when I try to change the engine and give it 64 mbytes on this p800. Deep Fritz's speed was normal later. r1nqr1k1/1p3ppp/4b3/pPP5/3p4/P4PN1/4PP1P/R2QKB1R b KQ - 0 1 Analysis by Deep Fritz: 1...Ne7 = (-0.16) Depth: 1/3 00:00:00 1...Ne7 = (0.00) Depth: 2/7 00:00:00 1...Ne7 = (0.00) Depth: 2/7 00:00:00 1...Ne7 = (0.00) Depth: 2/7 00:00:00 1...Ne7 = (0.00) Depth: 2/7 00:00:00 1...Qd5! = (0.12) Depth: 2/9 00:00:00 1...Qd5 2.Rc1 Ne7 = (0.06) Depth: 3/8 00:00:00 1...Qd5 2.Rc1 Qe5 3.Bg2 ² (0.31) Depth: 4/11 00:00:01 1kN 1...a4! ² (0.28) Depth: 4/13 00:00:02 3kN 1...b6! = (0.25) Depth: 4/13 00:00:02 3kN 1...b6! 2.c6 = (0.00) Depth: 4/14 00:00:02 3kN 1...b6-- ² (0.47) Depth: 5/13 00:00:07 10kN 1...b6-- ² (0.47) Depth: 5/13 00:00:07 10kN 1...a4! ² (0.44) Depth: 5/13 00:00:07 11kN 1...a4! 2.e3 Qa5+ 3.Qd2 Qc3 4.Qxc3 ² (0.28) Depth: 5/18 00:00:08 13kN 1...Qd5! = (0.25) Depth: 5/18 00:00:09 13kN 1...Qd5! 2.Rc1 = (0.12) Depth: 5/18 00:00:09 15kN 1...Qd5 2.Rc1 Ne7 3.e4 Qd7 4.Bd3 ² (0.37) Depth: 6/21 00:00:21 33kN 1...a4! ² (0.34) Depth: 6/21 00:00:32 50kN 1...a4! 2.e3 Bb3 3.Qd2 Qf6 4.e4 = (0.19) Depth: 6/23 00:00:42 68kN 1...a4 2.Rg1 Qh4 3.Ne4 Rd8 4.h3 Ne7 = (0.00) Depth: 7/22 00:01:01 251kN 1...a4 2.Rg1 Bb3 3.Qd2 Qd5 4.Ne4 Qe5 5.h3 ² (0.28) Depth: 8/27 00:01:03 660kN 1...a4 2.Rg1 Bb3 3.Qd2 Re5 4.Ne4 f5 5.Rg5 Ne7 ² (0.31) Depth: 9/27 00:01:04 1602kN 1...Bc4! ² (0.28) Depth: 9/27 00:01:07 3003kN 1...Bc4 2.e3 d3 3.Rb1 Qd5 4.Ne4 Rd8 5.Bh3 f5 6.Nd2 Qxc5 = (0.25) Depth: 10/28 00:01:09 4241kN 1...Bc4 2.e3 d3 3.b6 Re5 4.Ne4 f5 5.Rc1 Be6 6.Ng3 Rd5 ² (0.34) Depth: 11/30 00:01:18 9754kN 1...Qd5! ² (0.31) Depth: 11/33 00:01:28 15698kN 1...Na7! ² (0.28) Depth: 11/33 00:01:39 22446kN 1...Na7! 2.Ne4 Qd5 3.Qd2 Nxb5 4.e3 Nc3 5.Qxd4 Qxd4 6.exd4 Bd5 7.Kd2 = (0.19) Depth: 11/33 00:01:43 24827kN 1...Na7 2.a4 Re7 3.Rc1 Rd7 4.Ne4 f5 5.Bh3 Qh4 6.c6 ² (0.37) Depth: 12/34 00:02:22 47360kN 1...Bc4! ² (0.34) Depth: 12/35 00:02:34 54826kN 1...Bc4! 2.e3 d3 3.b6 Re5 4.Ne4 f5 5.Qc1 Be6 ² (0.31) Depth: 12/36 00:02:43 60562kN 1...Bc4 2.e3 d3 3.a4 Qd4 4.Rb1 Qd5 5.Ne4 Rd8 6.Nd2 Qxc5 ² (0.34) Depth: 13/37 00:04:33 127585kN 1...a4! ² (0.31) Depth: 13/37 00:05:50 174478kN 1...a4 2.Qd2 Qd5 3.Rc1 Rd8 4.Rg1 Ne7 5.Ne4 Qb3 6.Nd6 Nf5 ² (0.50) Depth: 14/41 00:15:44 538125kN 1...Bc4! ² (0.47) Depth: 14/41 00:16:29 565538kN 1...Bc4! 2.e3 d3 3.a4 Qd4 4.Rc1 Qxc5 5.Qxd3 Qb4+ 6.Qd2 Bxf1 7.Qxb4 = (0.25) Depth: 14/41 00:18:55 656193kN 1...Bc4 2.e3 d3 3.a4 Qd4 4.Rb1 Qxc5 5.Bxd3 Bxd3 6.Qxd3 = (0.25) Depth: 15/40 00:28:03 1005782kN 1...Bc4 2.e3 d3 3.Qd2 Bxb5 4.Qc3 Qd5 5.Rg1 = (0.25) Depth: 16/46 01:03:02 2342830kN 1...Bc4 2.e3 d3 3.a4 Qd4 4.Rc1 Qxc5 5.Qxd3 Qb4+ 6.Qc3 Qxc3+ 7.Rxc3 ² (0.50) Depth: 17/44 02:15:59 5174233kN 1...Na7! ² (0.47) Depth: 17/44 02:30:12 5730444kN 1...Qd5! ² (0.44) Depth: 17/49 04:06:32 9402173kN 1...Qh4! ² (0.41) Depth: 17/49 07:20:24 16815155kN 1...Qh4! 2.Bg2 Ne7 3.f4 Bd5 4.Bxd5 Nxd5 5.Qxd4 Nxf4 6.0-0-0 Qg5 ² (0.34) Depth: 17/49 10:11:04 23204155kN (Blass, Tel-aviv 31.12.2001) Uri
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