Author: Uri Blass
Date: 10:29:52 09/19/01
Go up one level in this thread
On September 16, 2001 at 15:55:14, Peter Berger wrote: >The logical one following the discussion: > >How long does it take your program to find 1...Ng4! ? It's easy to verify that >everything else besides 1...Nxe4 and 1...Ng4 loses . Nxe4 loses also ( read the >initial post) - so Ng4 is the only move . It seems to lead to a rather equal >position, too btw. > >Regards, > >pete > >[D] 3r1r1k/p3bPpp/2bp1n2/5R2/1q1BP3/1Bp5/PPP3PP/1K1R1Q2 b - - 0 1 I suspect that Ng4 is not good Here is Deep Fritz's analysis on p800 It does not like to play Ng4 inspite of seeing a significant positional advantage for white 3r1r1k/p3bPpp/2bp1n2/5R2/1q1BP3/1Bp5/PPP3PP/1K1R1Q2 b - - 0 1 Analysis by Deep Fritz: 1...Qxd4-- ± (1.09) Depth: 1/3 00:00:00 1...Qxd4-- 2.Rxd4 +- (3.34) Depth: 1/6 00:00:00 1...Qxb3! +- (3.28) Depth: 1/9 00:00:00 1...Qxb3! 2.axb3 +- (3.25) Depth: 1/16 00:00:00 1...cxb2! +- (1.94) Depth: 1/16 00:00:00 1...cxb2! -+ (-2.22) Depth: 1/16 00:00:00 1...cxb2-- -+ (-1.81) Depth: 2/9 00:00:00 1...cxb2-- 2.Rxf6 Bxf6 µ (-0.91) Depth: 2/9 00:00:00 1...Nxe4! µ (-1.06) Depth: 2/9 00:00:00 1...Nxe4! 2.a3 -+ (-2.25) Depth: 2/12 00:00:00 1kN 1...Nxe4 2.a3 Qb7 -+ (-2.09) Depth: 3/10 00:00:00 2kN 1...Nxe4 2.a3 Qb7 3.bxc3 -+ (-2.25) Depth: 4/12 00:00:00 4kN 1...Nxe4 2.bxc3 Qb7 3.Qd3 Rb8 -+ (-2.28) Depth: 5/16 00:00:00 17kN 1...Nxe4 2.bxc3 Qb7 3.Qd3 Rb8 4.Ka1 -+ (-2.09) Depth: 6/17 00:00:00 30kN 1...Nxe4 2.bxc3 Qb7 3.Ka1 Rb8 4.Qd3 d5 -+ (-2.19) Depth: 7/20 00:00:00 158kN 1...Nxe4 2.bxc3 Nxc3+ 3.Bxc3 Qxc3 4.Qe1 Qxe1 5.Rxe1 Bf6 6.g3 Rb8 -+ (-1.94) Depth: 8/22 00:00:00 300kN 1...Nxe4 2.bxc3 Qb7 3.Qf4 d5 4.Qh6 Bf6 5.Rxf6 Nxf6 6.Bxf6 -+ (-1.84) Depth: 9/23 00:00:01 949kN 1...Nxe4 2.a3 Qb7 3.Qf4 Nd2+ 4.Ka2 Nxb3 5.cxb3 cxb2 6.Bxg7+ Kxg7 7.Qg4+ -+ (-1.66) Depth: 10/30 00:00:04 2689kN 1...Nxe4 2.bxc3 Nxc3+ 3.Bxc3 Qxc3 4.Qe1 Qxe1 5.Rxe1 Bf6 6.g4 Bd7 7.Rf4 -+ (-1.94) Depth: 11/31 00:00:18 12091kN 1...Nxe4 2.bxc3 Nxc3+ 3.Bxc3 Qxc3 4.Qe1 Bf6 5.Qxc3 Bxc3 6.g3 Be4 7.Rf4 -+ (-2.09) Depth: 12/33 00:00:46 29288kN 1...Nxe4-- -+ (-1.78) Depth: 13/38 00:02:03 80372kN 1...Nxe4-- 2.Qf4 Ba8 3.bxc3 Qb7 4.Kc1 d5 5.Qe5 Bf6 6.Rxf6 Nxf6 ³ (-0.44) Depth: 13/38 00:03:11 127149kN 1...Nxe4-- = (-0.13) Depth: 14/41 00:09:13 378672kN 1...Nxe4-- 2.Qf4 cxb2 3.Rh5 Nf6 4.Rh6 Be4 5.Rxf6 d5 6.Re6 = (0.12) Depth: 14/41 00:11:23 467952kN 1...Nxe4 2.Qf4 cxb2 3.Rh5 Nf6 4.Rh6 Ne4 5.Rh5 Nf6 6.Rh6 Ne4 7.Rh5 = (0.00) Depth: 15/40 00:24:59 1034703kN 1...Nxe4 2.Qf4 cxb2 3.Rh5 Nf6 4.Rh6 Ne4 5.Rh5 Nf6 6.Rh6 Ne4 7.Rh5 = (0.00) Depth: 16/43 00:47:47 1985049kN 1...Nxe4-- ² (0.47) Depth: 17/44 01:26:11 3615463kN 1...Nxe4-- 2.Qf4 cxb2 3.Rh5 Nf6 4.Rh6 Ne4 5.Qf5 Ng5 6.Rh5 Be4 ² (0.66) Depth: 17/46 03:18:00 8185065kN 1...Nxe4 2.Qf4 cxb2 3.Rh5 Nf6 4.Rh6 Ne4 5.Qf5 Ng5 6.Rh5 Be4 ² (0.66) Depth: 18/46 07:17:58 18347252kN 1...Nxe4 2.Qf4 cxb2 3.Rh5 Nf6 4.Rh6 Ne4 5.Qf5 Ng5 6.Rh5 Be4 ² (0.56) Depth: 19/50 20:29:22 51847398kN (Blass, Tel-aviv 19.09.2001) Uri
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.