Author: Uri Blass
Date: 12:36:36 12/04/01
Go up one level in this thread
On December 04, 2001 at 15:03:48, Roy Eassa wrote: >On December 04, 2001 at 13:29:50, Roy Eassa wrote: > >>On December 04, 2001 at 10:34:00, K. Burcham wrote: >> >>> >>>looking for h4. >>> >>>[D] r5k1/4R1pp/2b2q2/2Bp4/p1p5/P4P2/1P1Q2PP/6K1 w - - 0 1 >>> >>> >>>deep fritz h4 90 seconds depth 14/34 1380 kns >>> (h3 4 seconds) >>>deep junior7 h4 21 minutes depth 22 1850 kns >>> (h3 1 second) >>>deep shredder h4 41 minutes ? 530 kns >>> (h3 57 seconds) >>> >>> >> >> >>Could somebody please explain the idea behind h4? > > >Lookiing at the position with Fritz 6, it seems that h4 is the only move to both >give White's king an escape square AND threaten to push to h5 to chase Black's >queen from a key defensive square in key variations. > >1.h4 > > [1.Qe3 Qg6 2.Re6 (2.Bd4 Re8 3.h3 Qb1+ 4.Kh2 Qg6) 2...Qb1+; > > 1.h3 Rc8 2.Qe3 Qg6 3.Bd4 Re8; > > 1.Rc7 Qe6 2.Bd4 (2.Qg5?? Qe1#) 2...Bd7] > >1...Qxh4 > > [1...Rb8 2.Qe3 Qf5 (2...h6? 3.Bd4) 3.Bd6! > (or 3.Bd4 Rb7 4.Rxb7 Bxb7 5.Qe8+ Qf8 6.Qxa4) > > 3...Rf8 > (3...Rc8 4.Be5; > 3...Rb7 4.Re8+ Kf7 5.Rf8+) > 4.Qc5 Be8 (4...Rc8 5.Be5) 5.Re1; > > 1...Rc8 2.Qe3 Qg6 3.h5! Qxh5 4.Qe6+; > > 1...h5 2.Rc7 Qe6 3.Qg5 Bd7 4.Bd4 Qf7 5.Bxg7] > >2.Qe3 Qh6 > > [2...Qf6 3.Bd4] > >3.Qxh6 gxh6 4.Bd4 Re8 5.Rg7+ Kf8 6.Rxh7 Re6 7.Kf2 and White is a little better >(but can White win?) Your analysis is wrong Qxh4 is losing against Rc7 Yace only material learned that Rc7 is winning and preferd c3 see http://www.icdchess.com/forums/1/message.shtml?200343 I am not sure if white is winning because black has other options like 1...c3 or 1...Re8 White has a pawn advnatage but I did not prove more than it. Uri
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