Author: Torstein Hall
Date: 16:20:42 01/30/00
Go up one level in this thread
On January 29, 2000 at 15:11:56, blass uri wrote: >On January 29, 2000 at 14:01:03, Torstein Hall wrote: > > >>>Chessmaster can see only an advantage of slightly more than 1 pawn for white >>>both with 21...axb3 and with 21...h6 >>> >>>Uri >> >>I have not the energy to look at this position again at the moment, but I feel >>white should win quite easy, just look out for nasty checks at a line. The >>treath of Rh3, Rg3 and Rf6 etc. forces weak point in blacks position and then >>soon check mate. And by the way, I feel that whites worst option is to take on >>f7 with the rook! >> >>Torstein > >I understand your feeling but I trust more chessmaster6000(ss=10) calculations. >I guess that if chessmaster6000 could not see a forced win in some hours on >PIII450 there is probably no forced win for white. > >If you have a good idea how to win after Rf3 h6 then I am interested to see how >you use it against chessmaster6000(ss=10) > >Uri Load this into your chessprogram and I think you will agree that white is winning after 20...a4 Torstein Soffer,R - Fritz 6 [A06] 1.Nf3 c5 2.e3 Nf6 3.b3 d5 4.Bb2 Nc6 5.Bb5 Bd7 6.0-0 e6 7.d3 Be7 8.Nbd2 0-0 9.Qe2 a6 10.Bxc6 Bxc6 11.Ne5 Qc7 12.f4 b5 13.Nxc6 Qxc6 14.Nf3 Nd7 15.Ne5 Nxe5 16.fxe5 c4 17.Bd4 b4 18.Rf2 c3 19.Raf1 a5 20.Qh5 Black is lost. 20...Qe8 20...a4 21.Rf3 A) 21...h6 22.Rf6 (22.Rg3=) 22...axb3 23.axb3 Qa6 (23...Qe8 24.Rxh6) 24.Rxh6 (24.R1f3? Qa2; 24.Rxf7 Kh7 25.Rxe7 Rxf1+ 26.Kxf1 Rf8+ 27.Rf7+- ..and white should win, but 24.Rxh6 was probably better.) 24...gxh6 25.Qxh6 Qa2 26.Bc5 Qxc2 27.Bxe7 Qxd3 28.Bf6 Qh7 29.Qg5+ Qg6 30.Qh4 Qh7 31.Rf4 Ra1+ 32.Kf2 Qc2+ 33.Kg3+- and check mate in 4; B) 21...axb3 22.axb3 B1) 22...Qa6 23.Rh3 h6 B1a) 24.Rg3 Kh7 25.Qg4 B1a1) 25...g6 26.Bc5! h5 (26...Bxc5 27.Rxf7+ Rxf7 28.Qxg6+ Kh8 29.Qxh6+ Rh7 30.Qf6+ Rg7 31.Qxg7#) 27.Rxf7+ Rxf7 28.Qxg6+ Kh8 29.Qxf7 and check mate in some moves; B1a2) 25...Rg8 26.Rxf7 Qa1+ 27.Rf1 Qb2 28.Qxe6 (28.Qg6+ Kh8 29.Rh3 Bf8 30.Qxe6 Ra1 31.Rhf3 Rxf1+ 32.Rxf1 Qxc2 33.Qg6 Bc5 34.Bxc5 Qe2 35.Qf5 c2 36.Rc1) 28...Ra1 29.Rgf3 Rxf1+ 30.Rxf1 Qxc2 31.Qxe7+-; B1b) 24.Rf6 24...Qa1+ 25.Rf1+-; B2) 22...Qe8 23.Rh3 h6 24.Rf6 Ra1+ 25.Kf2 and the rest is easy. 25...Qd8 26.Rxh6+-] 21.Rf6 Qb5 22.R1f3 Rfc8 23.Qxf7+ Kh8 24.Qxe7 Qe8 25.Rxe6 1-0
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