Author: Uri Blass
Date: 23:33:26 01/14/01
Go up one level in this thread
On January 14, 2001 at 19:09:31, Jeroen van Dorp wrote: >A lot startup with finding it yet discarding it rapidly, most for Kc4 or R2d3 >with assessment =. >Fritz and Junior 6 didn't find it, Hiarcs 7.32 was at a loss, as was Comet B27, >Nimzo 99 did, but assessed it as a draw and Crafty 17.14 CB native engine >calculated it, yet not "convincingly" winning: > >[D]1r2k1r1/3p1p2/2bR1Bp1/p1K1P2p/5P1P/1P6/3R4/8 w - - 0 1 > >Analysis by Crafty 17.14: > >1.Rxc6 dxc6 > -+ (-2.08) Depth: 1/2 00:00:00 >1.R6d3 > -+ (-1.68) Depth: 1/2 00:00:00 >1.R6d3 > = (-0.04) Depth: 1/2 00:00:00 >1.R6d3 Rc8 > ³ (-0.30) Depth: 2/5 00:00:00 >1.R6d3 Rc8 2.Kd6 > = (-0.20) Depth: 3/5 00:00:00 >1.R6d3 Rc8 2.Kd6 Rf8 > ³ (-0.27) Depth: 4/7 00:00:00 >1.R6d3 Rc8 2.Kd6 Be4 3.Rd4 > ³ (-0.26) Depth: 5/10 00:00:00 >1.R6d3 Rb5+ 2.Kd6 Be4 3.Rc3 Rb6+ 4.Kc5 Rc6+ 5.Kd4 Rxc3 6.Kxc3 > ³ (-0.34) Depth: 6/12 00:00:00 21kN >1.R2d3 Be4 2.R3d4 Bf5 3.b4 Rxb4 4.Rxb4 axb4 5.Kxb4 > ³ (-0.31) Depth: 6/12 00:00:00 36kN >1.Ra2 Rb5+ 2.Kd4 Rf8 3.Ra4 Bf3 4.Ra1 > ³ (-0.30) Depth: 6/12 00:00:00 53kN >1.Ra2 Rxb3 2.Rxa5 Rc3+ 3.Kb4 Rf3 4.Rd4 Re3 > = (-0.24) Depth: 7/14 00:00:00 82kN >1.R2d3 Rc8 2.Kd4 Bg2 3.Ke3 Rc7 4.Kd4 > = (-0.19) Depth: 7/14 00:00:00 140kN >1.R2d3 Be4 2.R3d4 Bf5 3.Ra6 Rf8 4.Rxa5 Rxb3 > = (-0.21) Depth: 8/17 00:00:00 267kN >1.Ra2 Ra8 2.Ra3 Be4 3.Kd4 Bg2 4.Ra1 Bf3 > = (-0.14) Depth: 8/17 00:00:00 393kN >1.Ra2 Ra8 2.Ra3 Ra6 3.Kd4 Rf8 4.b4 a4 5.Ke3 > = (-0.04) Depth: 9/18 00:00:01 544kN >1.Ra2 Ra8 2.Ra3 Be4 3.Kb6 Bc2 4.Kb7 Be4+ 5.Kb6 > = (0.00) Depth: 10/18 00:00:02 961kN >1.Ra2 Rb5+ 2.Kd4 Rb4+ 3.Kc5 Rb5+ > = (0.00) Depth: 11/20 00:00:04 2310kN >1.Rxc6 dxc6 2.Kxc6 Kf8 3.Kc7 Ra8 4.Kb7 Re8 5.Rd5 Re6 6.Rxa5 > = (0.14) Depth: 11/20 00:00:05 2558kN >1.Rxc6 dxc6 2.Kxc6 Kf8 3.Kc7 Ra8 4.Rd5 a4 5.Kb7 Re8 6.bxa4 Re6 > ² (0.32) Depth: 12/21 00:00:05 2736kN >1.Rxc6 dxc6 2.Kxc6 Kf8 3.Kc7 Ra8 4.Rd5 Re8 5.Rxa5 Re6 6.Ra8+ Re8 7.Ra7 Re6 8.b4 > ² (0.66) Depth: 13/23 00:00:06 3284kN >1.Rxc6 dxc6 2.Kxc6 Kf8 3.Kc7 Ra8 4.Rd5 a4 5.bxa4 Re8 6.Kb7 Re6 7.Rd8+ Re8 8.Rd7 >Re6 > ² (0.66) Depth: 14/25 00:00:07 3968kN >1.Rxc6 dxc6 2.Kxc6 Kf8 3.Kc7 Ra8 4.Rd5 Re8 5.Rxa5 Re6 6.Ra7 Re8 7.b4 Re6 8.b5 > ± (1.04) Depth: 15/25 00:00:10 5695kN >1.Rxc6 dxc6 2.Kxc6 Kf8 3.Kc7 Ra8 4.Rd8+ Rxd8 5.Kxd8 g5 6.fxg5 Rg6 7.Kc7 Ke8 >8.Kb6 Kd7 9.Kxa5 Kc6 10.b4 > ² (0.68) Depth: 16/31 00:00:29 15712kN >1.Rxc6 dxc6 2.Kxc6 Kf8 3.Kc7 Ra8 4.Rd8+ Rxd8 5.Kxd8 g5 6.fxg5 Rg6 7.Kc7 Ke8 >8.Kb6 Kd7 9.Kxa5 Kc6 10.b4 > ± (1.08) Depth: 17/31 00:00:41 22895kN >1.Rxc6 dxc6 2.Kxc6 Kf8 3.Rd5 Ra8 4.Kb7 Re8 5.Rxa5 Re6 6.Kc7 Re8 7.Ra7 Re6 8.b4 >Re8 9.b5 Re6 > ± (1.04) Depth: 18/37 00:02:27 84345kN > >(van Dorp, Utrecht 15.01.2001) I guess that all programs find it after enough time. Deep Fritz(p800 64 mbytes hash) found Rxc6 in 25 seconds The score after 86 seconds is +1.91 for white at depth 18. Junior5 can also find it It only needs more time for it The scor at depth 19 is 0.00 and it wants to play Ra2 but it fails high at this depth on Rxc6 after 5:10 on p800 It solves the fail high after 5:51 with score +0.55 Junior5 fails high again on Rxc6 at depth 21 after 6:55 with score of 0.85 Junior6 has a smaller evaluation of pawns so I will not be surprised to hear that it needs more time but I will be surprised if it cannot solve it in an hour. Uri
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