Author: Sune Larsson
Date: 16:29:09 02/28/01
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On February 28, 2001 at 19:01:46, Enrique Irazoqui wrote: >On February 28, 2001 at 14:33:56, Sune Larsson wrote: > >> >> 3r4/7p/Rp4k1/5p2/4p3/2P5/PP3P1P/5K2 b - - 0 1 >> >> This is Tarrasch-Rubinstein, San Sebastian 1911. >> Black is a pawn down and the b6 pawn is under attack. Passive >> defence with 1.-Rd6 or 1.-Rb8 is doomed to failure. Rubinstein >> grasps his only chance: To mobilize his rook and king. >> Activity is vital in rook endings. >> >> 1.-Rd2! 2.Rxb6+ Kg5 3.Ke1 [3.a4 f4 4.a5 f3! is more than welcome to black.] >> 3.-Rc2 4.Rb5 Kg4! 5.h3+ Kxh3 6.Rxf5 Rxb2 and black drew without effort. >> >> >> Test: Big + for your program if it chooses 1.-Rd2! combined with >> activating the king. >> >> Thumbs down if it chooses passive defence with 1.-Rd6 or 1.-Rb8. >> >> Sune > >Thumbs down for Deep Shredder and Deep Fritz then. But I'm not so convinced >about Rd2. I'll take a longer look at it tomorrow. > >Enrique Interesting, then we have a professor trying to refute the doctor...;) Seriously I'm convinced that the best practical chance for black is the way Rubinstein chose. But these rook endings can be soo tricky that it's possible to find something better for white. Rubinsteins play is used as a basic example of how to handle such a position. Sune
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