Author: Rex
Date: 08:07:22 02/07/04
Go up one level in this thread
On February 06, 2004 at 13:48:48, Jaime Benito de Valle Ruiz wrote: >This endgame study can be game following the sequence > >1.Bd1 g1Q 2.Bxa4 Qc1 3.Bxd7 h5 4.Be8 h4 5.Ba4 Line > >[d] 8/3p4/p6p/k2N3B/p7/K6p/PP4pP/8 w - - 0 1 > >Many engines (Fritz 8, Hiarcs 8, Ruffian 1.01) cannot win this endgame, probably >due to the well known null-move problem for extreme and rare positions such as >this. > >They just don't find 5. Ba4 > >Try your engine after 4...,h4 > >[d]8/3p4/p6p/k2N3B/p7/K6p/PP4pP/8 w - - 0 1 > >All the above mentioned engines play 5.Bd7 and get a draw instead of winning. > >Regards, > > Jaime Rebel TKO: AMD MP 2600 00:00:00.8 -3.35 4 2802 Bd1 00:00:00.8 -1.79 4 3675 Bd1 g1Q Bxa4 Qc1 Bxd7 00:00:00.8 -1.79 5 4175 Bd1 g1Q 00:00:00.8 -1.79 6 5086 Bd1 g1Q 00:00:00.8 -1.79 7 6865 Bd1 g1Q Bxa4 00:00:00.8 -1.79 8 12658 Bd1 g1Q 00:00:00.8 -1.79 9 24320 Bd1 g1Q Bxa4 Qc1 00:00:00.8 -1.79 10 51733 Bd1 g1Q 00:00:00.9 -1.79 11 98809 Bd1 g1Q Bxa4 Qc1 Bxd7 00:00:00.9 -1.79 12 197148 Bd1 g1Q 00:00:01.1 -1.53 13 375315 Bd1 g1Q Bxa4 Qc1 Bxd7 h5 Bxh3 00:00:01.2 -1.53 14 657947 Bd1 g1Q 00:00:01.6 -1.59 15 1105432 Bd1 g1Q Bxa4 Qc1 Bxd7 h5 Be6 00:00:07.2 3.70 16 8326153 Bd1 Kb5 Nc3+ Ka5 Ne2 d5 Ng1 d4 Be2 h5 00:00:21.0 0.00 17 25851761 Bd1 g1Q Bxa4 Qc1 Bxd7 h5 Ba4 00:00:23.4 0.00 18 29189680 Bd1 g1Q Bxa4 Qc1 Bxd7 h5 Ba4
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