Author: Sune Larsson
Date: 05:20:47 02/27/01
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On February 27, 2001 at 04:32:01, Paul wrote: >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 > >Hi Sune! > >First ... thanks for the positions you've been giving us the last couple of >days! They sure are educational and easy to understand ... for me at least. > >This is really helpful, since I'm not a strong chess player so am having some >difficulties finding the right knowledge to build into my chess program. I like >to fiddle with the search, and neglect the eval part :) ... so this is giving >me some ideas! Although it's not clear to me whether I should use this, coz I'm >not sure (in light of the results) if even the top programs have this knowledge >built in! ;) > >The above position is a different kind of 'animal' though, it's an easy (at >least for my program, less than a second :)) forced mate. I knew this one, and >remembered that I have (dare I say) an even more entertaining position two moves >prior to this one: > >[D]8/7b/8/8/7p/1pp5/7Q/k1K1N3 w - - 0 1 > >This is also a forced mate, but a bit deeper than the other one ... enjoy! :) > >Groetjes, >Paul Thank you very much Paul! Very nice indeed! After 1.Nc2+ the two different takings of the knight were refuted. Then 1.-Ka2 2.Nb4++ Ka2 leads to the first game in the club house ;) Third and last the alternative 2.-Ka3 claimed a few more moves. Beautiful! Sune
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