Author: Uri Blass
Date: 21:46:37 02/26/01
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On February 26, 2001 at 21:34:07, Sune Larsson wrote: > > [D]8/7b/8/8/1N5p/1pp5/7Q/k1K5 w - - 0 1 > > > It was late one night in the smoky, old club house. Master Paradox was > blitzing as white against the stubborn Mr.Doubt. In highest time pressure > Master Paradox played 1.Qa2+ and hissed out: "Mate". "Hah, this is no mate. > I just take it!", Mr Doubt yelled and played his 1.-bxa2. "I said mate", > replied Master Paradox with rugged voice - lifted his knight and placed it > with a thud on c6 (2.Nc6). Mr Doubt stared at the position. Naturally he > couldn't believe his own eyes...shuffled up the pieces and left the room > without a word. > > True? Not really ;) This position is from Keres. White, a queen up, faces > the unpleasant ...b2+. The only way to bring it home is the paradoxical > 1.Qa2+! After 1.-bxa2 2.Nc6! black is helpless against the threat 3.Nd4 > with mate on b3(c2). A true beauty! > > Test: This position should be solvable since there is a forced mate. > > Sune Some programs cannot solve it because they have knowledge that King and knight without more pieces cannot win. This knowledge is usually correct and the programmers do not care about less than 1 elo that the program may lose when the knowledge is not correct. Uri
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