Author: Uri Blass
Date: 20:37:17 09/15/01
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
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