Author: Slater Wold
Date: 21:25:46 09/15/01
Go up one level in this thread
On September 15, 2001 at 23:37:17, Uri Blass wrote: >How much time do your programs need to find 19.Qf1? > >Fisher said about this move in his book:"My 60 Memorable games" >"A hard move to find it took around 45 minutes" > >Deep Fritz on PIII850(64 Mbytes hash) needed more than 2 hours to find this move >and even after more than 5 hours it cannot se that the line 19.Qf1 Nxe4 is a >clear advantage for white. > >Deep Fritz missed 24.h4 in it's main line. > >Note that fisher did not find this move in the game for the right reason and the >proof is that he could not find 20.Qf4 later after 19.Qf1 Nxe4 > >Even after the game Fisher did not understand the position. >Fisher claimed in his book that 20.a3(after 19.Qf1 Nxe4) is the losing move and >I guess that he is wrong because of the line 20.a3 Qb7 21.Rh5(a move that fisher >did not play) > >Fisher also missed 21...Nf6 for black in his analysis after 20.Qf4 cxb2 21.Rh5. > >The game continued 20.a3? Qb7 21.Qf4? Ba4 22.Qg4 Bf6 23.Rxf6? Bxb3 0-1 > > > >[D]3r1r1k/p3bPpp/2bp1n2/5R2/1q1BP3/1Bp5/PPP1Q1PP/1K1R4 w - - 0 1 > >Analysis by Deep Fritz: > >19.Rxf6-- > -+ (-1.50) Depth: 1/7 00:00:00 >19.Rxf6-- Bxf6 > -+ (-2.41) Depth: 1/7 00:00:00 >19.Bxf6! > -+ (-1.44) Depth: 1/7 00:00:00 >19.Bxf6! Bxf6 > µ (-1.31) Depth: 1/7 00:00:00 >19.Bxc3! > µ (-0.94) Depth: 1/7 00:00:00 >19.Bxc3! Qxe4 > = (-0.09) Depth: 1/7 00:00:00 >19.Bxc3 Qxe4 20.Qxe4 > = (-0.09) Depth: 2/11 00:00:00 >19.Bxc3 Qxe4 20.Qxe4 Nxe4 > = (-0.09) Depth: 3/11 00:00:00 2kN >19.Bxc3 Qb7 20.Ba5 Rc8 > = (0.00) Depth: 4/18 00:00:00 4kN >19.Bxc3-- > ³ (-0.47) Depth: 5/13 00:00:00 16kN >19.Bxc3-- Qb7 20.Ba5 Rb8 21.e5 dxe5 > ³ (-0.59) Depth: 5/13 00:00:00 20kN >19.Qa6! > ³ (-0.56) Depth: 5/25 00:00:00 65kN >19.Qa6! Bb7 20.Qa5 Qxa5 21.Rxa5 a6 > ³ (-0.41) Depth: 5/25 00:00:00 78kN >19.Qa6 Bd7 20.bxc3 Qb8 21.Qxa7 Rxf7 22.Qxb8 > ³ (-0.47) Depth: 6/23 00:00:00 135kN >19.Qa6 Bd7 20.bxc3 Qb8 21.Qxa7 Rxf7 22.Qxb8 Rxb8 > ³ (-0.47) Depth: 7/23 00:00:00 378kN >19.Qa6 Nxe4 20.Qxc6 Nd2+ 21.Kc1 Qxd4 22.Qxc3 Qe4 23.Rf2 Nxb3+ 24.Qxb3 > µ (-0.75) Depth: 8/25 00:00:01 947kN >19.Bxc3! > µ (-0.72) Depth: 8/25 00:00:01 1032kN >19.Bxc3! Qb7 20.e5 dxe5 21.Rxd8 Bxd8 22.Bxe5 Bxg2 23.Be6 > ³ (-0.69) Depth: 8/25 00:00:01 1086kN >19.Bxc3 Qxe4 20.Qxe4 Bxe4 21.Ra5 Rd7 22.Bd4 d5 23.Ba4 Rb7 > ³ (-0.47) Depth: 9/24 00:00:03 2605kN >19.Bxc3 Qxe4 20.Qxe4 Bxe4 21.Ra5 Rd7 22.Be6 Rc7 23.g4 d5 24.g5 > ³ (-0.62) Depth: 10/25 00:00:06 4607kN >19.Bxc3 Qxe4 20.Qxe4 Bxe4 21.Ra5 Rd7 22.Be6 Rc7 23.g4 Bf3 24.Rd4 d5 > ³ (-0.56) Depth: 11/25 00:00:23 17080kN >19.Bxc3 Qxe4 20.Qxe4 Bxe4 21.Ra5 Rd7 22.Ra6 Rb7 23.Bxf6 gxf6 24.g3 Kg7 > ³ (-0.66) Depth: 12/28 00:00:53 39714kN >19.Rg5! > ³ (-0.62) Depth: 12/34 00:02:47 125446kN >19.Rg5! Rxf7 20.Bxc3 Qxe4 21.Qa6 Bb7 22.Qa5 Rdf8 23.Bxf7 Rxf7 > ³ (-0.56) Depth: 12/35 00:03:26 155498kN >19.Rg5 d5 20.Bxc3 Qxe4 21.Qxe4 dxe4 22.Kc1 a6 23.Rxd8 Rxd8 > ³ (-0.50) Depth: 13/35 00:05:57 271203kN >19.Rg5-- > µ (-0.81) Depth: 14/37 00:18:48 738720kN >19.Rg5-- Rxf7 20.Bxc3 Qxe4 21.Qa6 Bb7 22.Qxa7 Nd5 23.Bxd5 > µ (-1.00) Depth: 14/38 00:23:59 908592kN >19.Bxc3! > µ (-0.97) Depth: 14/38 00:24:11 914830kN >19.Bxc3! Qxe4 20.Qxe4 Bxe4 21.Ra5 Rd7 22.Be6 Rc7 23.Rd2 Bg6 24.Bd4 Bxf7 > µ (-0.72) Depth: 14/38 00:25:56 968438kN >19.Qf2! > ³ (-0.69) Depth: 14/38 00:45:24 1600946kN >19.Qf2! Nxe4 20.Qf4 Ba8 21.a3 Qb7 22.Qh6 Bf6 23.Rxf6 Nxf6 > ³ (-0.50) Depth: 14/39 00:48:54 1714211kN >19.Qf2 Ng4 20.Qf3 Ne5 21.Bxc3 Qxe4 22.Bxe5 Qxf3 23.Bxg7+ Kxg7 > ³ (-0.37) Depth: 15/41 01:24:59 2893693kN >19.Qf1! > ³ (-0.34) Depth: 15/41 02:15:25 4535899kN >19.Qf1! Nxe4 20.Qf4 Ba8 21.Rh5 Nf6 22.Rxh7+ Kxh7 23.Qh4+ > = (0.00) Depth: 15/41 02:26:05 4880153kN >19.Qf1 Nxe4 20.Qf4 cxb2 21.Rh5 Nf6 22.Rh6 Ne4 23.Qf5 Ng5 24.Qg4 > = (0.03) Depth: 16/43 02:51:59 5710543kN >19.Qf1 Nxe4 20.Qf4 cxb2 21.Rh5 Nf6 22.Rh6 Ne4 23.Qf5 Ng5 24.Qg4 > = (0.03) Depth: 17/46 05:09:19 10158100kN > >(blass, tel-aviv 16.09.2001) > >Uri Deep Fritz T29c - W,S 3r1r1k/p3bPpp/2bp1n2/5R2/1q1BP3/1Bp5/PPP1Q1PP/1K1R4 w - - 0 1 Analysis by Deep Fritz T29c: 1.Rxf6-- -+ (-1.50) Depth: 1/7 00:00:00 1.Rxf6-- Bxf6 -+ (-2.41) Depth: 1/7 00:00:00 1.Bxf6! -+ (-1.44) Depth: 1/7 00:00:00 1.Bxf6! Bxf6 µ (-1.31) Depth: 1/7 00:00:00 1.Bxc3! µ (-0.94) Depth: 1/7 00:00:00 1.Bxc3! Qxe4 = (-0.09) Depth: 1/7 00:00:00 1.Bxc3 Qxe4 2.Qxe4 = (-0.09) Depth: 2/11 00:00:00 1.Bxc3 Qxe4 2.Qxe4 Nxe4 = (-0.09) Depth: 3/11 00:00:00 2kN 1.Bxc3 Qb7 2.Ba5 Rc8 = (0.00) Depth: 4/18 00:00:00 4kN 1.Bxc3-- ³ (-0.47) Depth: 5/13 00:00:00 17kN 1.Bxc3-- Qb7 2.Ba5 Rb8 3.e5 dxe5 ³ (-0.59) Depth: 5/13 00:00:00 21kN 1.Qa6! ³ (-0.56) Depth: 5/25 00:00:00 67kN 1.Qa6! Bb7 2.Qa5 Qxa5 3.Rxa5 a6 ³ (-0.41) Depth: 5/25 00:00:00 78kN 1.Qa6 Bd7 2.bxc3 Qb8 3.Qxa7 Rxf7 4.Qxb8 ³ (-0.47) Depth: 6/21 00:00:00 140kN 1.Qa6 Bd7 2.bxc3 Qb8 3.Qxa7 Rxf7 4.Qxb8 Rxb8 ³ (-0.47) Depth: 7/21 00:00:00 383kN 1.Qa6 Nxe4 2.Qxc6 Nd2+ 3.Kc1 Qxd4 4.Qxc3 Qe4 5.Rf2 Nxb3+ 6.Qxb3 µ (-0.75) Depth: 8/25 00:00:00 957kN 1.Bxc3! µ (-0.72) Depth: 8/25 00:00:00 1049kN 1.Bxc3! Qb7 2.e5 dxe5 3.Rxd8 Bxd8 4.Bxe5 Bxg2 5.Be6 ³ (-0.69) Depth: 8/25 00:00:00 1109kN 1.Bxc3 Qxe4 2.Qxe4 Bxe4 3.Ra5 Rd7 4.Bd4 d5 5.Ba4 Rc7 ³ (-0.47) Depth: 9/25 00:00:01 2701kN 1.Bxc3 Qxe4 2.Qxe4 Bxe4 3.Ra5 Rd7 4.Be6 Rc7 5.g4 d5 6.g5 ³ (-0.62) Depth: 10/26 00:00:03 4702kN 1.Bxc3 Qxe4 2.Qxe4 Bxe4 3.Ra5 Rd7 4.Be6 Rc7 5.g4 Bf3 6.Rd4 d5 ³ (-0.56) Depth: 11/29 00:00:10 16960kN 1.Bxc3 Qxe4 2.Qxe4 Bxe4 3.Ra5 Rd7 4.Ra6 Rc7 5.Bxf6 gxf6 6.Rd4 f5 ³ (-0.66) Depth: 12/27 00:00:23 36786kN 1.Rg5! ³ (-0.62) Depth: 12/33 00:01:11 115215kN 1.Rg5! Rxf7 2.Bxc3 Qxe4 3.Qa6 Bb7 4.Qa5 Rdf8 5.Bxf7 Rxf7 6.Qxa7 ³ (-0.56) Depth: 12/33 00:01:29 144140kN 1.Rg5 d5 2.Bxc3 Qxe4 3.Qxe4 dxe4 4.Bd4 Bb7 5.Kc1 a6 6.Rf5 Bc8 ³ (-0.50) Depth: 13/34 00:02:35 251885kN 1.Rg5-- µ (-0.81) Depth: 14/36 00:06:42 653572kN 1.Rg5-- Rxf7 2.Bxc3 Qxe4 3.Qa6 Bb7 4.Qxa7 Nd5 5.Bxd5 Bxd5 6.Bxg7+ µ (-1.00) Depth: 14/36 00:08:15 806616kN 1.Bxc3! µ (-0.97) Depth: 14/36 00:08:22 816303kN 1.Bxc3! Qxe4 2.Qxe4 Bxe4 3.Ra5 Rd7 4.Be6 Rc7 5.Rd2 Bg6 6.Bd4 Bxf7 µ (-0.72) Depth: 14/36 00:09:02 878263kN 1.Qf2! ³ (-0.69) Depth: 14/38 00:14:34 1414672kN 1.Qf2! Nxe4 2.Qf4 Ba8 3.a3 Qb7 4.Qh6 Bf6 5.Rxf6 Nxf6 6.Bxf6 ³ (-0.50) Depth: 14/38 00:15:29 1500408kN 1.Qf2 Ng4 2.Qf3 Ne5 3.Bxc3 Qxe4 4.Bxe5 Qxf3 5.Bxg7+ Kxg7 6.gxf3 ³ (-0.37) Depth: 15/39 00:21:31 2076724kN 1.Qf1! ³ (-0.34) Depth: 15/39 00:36:53 3565036kN (W, 15.08.2001) At (almost) 4x the speed and hash, and you can find it faster than Fischer himself. :) Slate
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.