Author: Ricardo Gibert
Date: 00:32:31 07/31/00
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On July 31, 2000 at 02:25:37, Poschmann wrote: >In a magazine I found the following position. It should be a draw ? >Unfortunately I don't have the following issue of the magazine with the >solution. >It is a 6-piece-endgame. I tried to solve it with the help of Fritz6 >(without tablebases), but I can't. > >[D]K7/8/4k3/1R1R4/8/8/p7/7r w - - > >I had the following to ideas: >a) Go to a 5-piece-endgame: >1. Re5+ Kf6 2. Rf5+ Kg6 3. Rg5+ Kh6 4. Rh5+ Rxh5 5. Rb6+ Kg5 6. Ra6 Rh2 > >b) Allow Black to promote the pawn: >... 4. Rge5 a1=Q+ 5. Ra5 > >I think in both cases White loses the game. But I can't proof it without >tablebases. >- Can somebody with the 5-piece-tablebases proof position a) >- Are some 6-piece-tablebases available to proof position b) without a pawn or > the initial position with one pawn. >- Is there somebody who knows the initial position and its solution ? > >Thank you >Ralf Poschmann I think the basic idea may be something like this: 1.Re5 Kf6 2.Ra5 a1Q 3.Rb5 Qd4 4.Rb6 Qxb6 5.Rf5 Ke7 6.Rf7 Kd8 7.Rf8 Kc7 8.Rf7 Kc8 9.Rc7 I'm doing this from work (night shift), so I didn't have time to elaborate nor check my analysis. If it isn't right, maybe it will give you the ideas you need to figure it out for yourself. Good luck!
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