Author: José de Jesús García Ruvalcaba
Date: 11:57:53 09/02/01
Go up one level in this thread
On September 02, 2001 at 14:24:32, Bruce Moreland wrote: >On September 02, 2001 at 13:51:44, Eduard Nemeth wrote: > >>[D]8/p7/1p2k1p1/8/1p2p1Pp/3pP2P/PP6/5K2 w - - 0 1 >> >>White is move. > >It's hard to detect that there is no penetration, no pawn break, and no problem >caused by the fact that white is tied down due to the protected passer. > >If the q-side pawns were blocked, it might be possible to figure this out >easily, but it's not easy to teach a computer to resolve the crippled 3 vs 2 >that's happening over there now. > >If it's black to move, does any program try 1. ... b3? All of my computers are >busy, so I can't tell. I don't know if this wins, but it is clearly the only >try. > Yes, with black to move 1... b3! wins. If white plays 2. ab3 then black simply plays his king to b4 and b3 (of course several moves are required). 1... a4 loses the pawn, and if 1... a3 then black moves his king to a4, followed by advancing the pawn to b4 and creates another passed pawn. José. >Can you or someone else run Fine 70 for me with these programs and report the >results? I'm interested that Fritz is getting so deep in this pawn ending, and >I wonder if it can find this. > >[D]8/k/3p/p2P1p/P2P1P/16/K w - - 0 1 > >bruce > >> >>Ups: Fritz 6c is +5 pawns for black! >> >>Neue Stellung >>8/p7/1p2k1p1/8/1p2p1Pp/3pP2P/PP6/5K2 w - - 0 1 >> >>Analysis by Fritz 6: >> >>1.b3 a5 2.Ke1 Kd5 3.Kd2 Ke5 4.Kd1 a4 5.Kd2 Kf6 >> -+ (-5.03) Tiefe: 28/47 00:01:05 25020kN >>1.b3 a5 2.Ke1 g5 3.Kd1 a4 4.Kd2 b5 5.Ke1 Kf6 >> -+ (-5.12) Tiefe: 29/50 00:02:24 60749kN, tb=16 >> >> >>Ups, S532 is +5 pawns for black too! >> >>Analysis by Shredder 5.32: >> >>1.b3 a5 2.Ke1 a4 3.Kd1 d2 4.Kxd2 b5 5.bxa4 bxa4 6.Kd1 a3 7.Kc1 Kf7 8.g5 b3 >>9.axb3 a2 10.Kb2 Kg7 11.Kxa2 Kh8 12.b4 >> -+ (-5.14) Tiefe: 22/34 00:00:34 10705kN >>1.b3 a5 2.Ke1 Kf7 3.Kd2 Ke7 4.Ke1 a4 5.bxa4 Ke6 6.Kf2 Kd5 7.g5 Kc4 8.Kg2 b5 9.a3 >> -+ (-5.18) Tiefe: 23/35 00:01:35 31740kN >> >>Tiger 14 is only +3.84 pawns for black, this is strong! >> >>Analysis by Chess Tiger 14.0: >> >>1.b3 g5 2.Ke1 b5 3.Kd1 a5 4.Ke1 Kd5 5.Kd1 Kd6 6.Ke1 Ke7 7.Kd1 Kf8 8.Kd2 Kg7 >>9.Ke1 Kg6 10.Kd2 Kf6 >> -+ (-3.84) Tiefe: 22 00:00:51 14561kN >>1.b3 g5 2.Ke1 b5 3.Kd1 a5 4.Ke1 Kd5 5.Kd1 Ke5 6.Ke1 Ke6 7.Kd2 Kf6 8.Ke1 Ke7 >>9.Kd1 Kd7 10.Ke1 Kc7 >> -+ (-3.84) Tiefe: 23 00:02:14 38052kN >> >>But Nimzo is again +5 pawns for black!!! >> >>Analysis by Nimzo 8: >> >>1.b3 Kd5 2.Ke1 a5 3.Kd1 a4 4.Ke1 a3 5.Kd2 Ke6 6.Ke1 >> -+ (-5.27) Tiefe: 19/38 00:01:19 50195kN >>1.b3 Kd5 2.Ke1 a5 3.Kd1 a4 4.Ke1 Kd6 5.Kd2 Kc5 6.Ke1 >> -+ (-5.27) Tiefe: 20/40 00:03:12 125156kN >> >> >>Eduard
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