Author: Darren Rushton
Date: 13:52:25 02/05/04
Go up one level in this thread
On February 05, 2004 at 16:38:37, George Tsavdaris wrote: >On February 05, 2004 at 15:52:53, Will Singleton wrote: > >>On February 05, 2004 at 15:49:09, George Tsavdaris wrote: >> >>>On February 05, 2004 at 15:07:27, José Antônio Fabiano Mendes wrote: >>> >>>> Study by David Przepiorka [Vorwärts, 1910] vorwärts ==> onward/forward/ahead >>>> [D]R5n1/4n2p/4K2P/2k3P1/1p6/8/8/8 w >>>> The only winning move is 1. Rb8 then 1...Kc4 2. Rxg8 Nxg8 3. g6 b3 4. gxh7 b2 >>>> 5. hxg8=Q b1=Q 6. h7 Qe4+ 7. K moves, discovered check and White wins. Now we >>>> understand the purpose of 1. Rb8, White King moves with check. >>>> Source ==> "Ajedrez", Editorial Sopena Argentina, April 1978, page 191 >>> >>>Well i think the immediate 1.Rxg8 is winning too (more easily according to >>>computers). >> >>I don't think that wins, as black can queen and get a perpetual (I think). My >>question is, after Rb8, how does white win after Nxh6? > >Can you find an improvement for black in this line: > >1.Rxg8 Nxg8 2.g6 hxg6 3.h7 Nh6 4.h8Q Nf5 5.Ke5 b3 6.Qc8+ Kb4 7.Qc1 with a clear >win. > >If instead 2...b3 3.gxh7 b2 4.hxg8Q b1Q and a tablebase mate in 37 for white >with 5.Qc8+ Disagree; after 2.g6 hxg6?? loses immediately, black plays Ne7 instead. Strongest is: 1.g6 Nxg6 2.Rc8+ Kd4 3.Rxg8 Ne5 4.Rg7 Ke4 5.Rb7 Nd3
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