Author: Igor Syry
Date: 20:48:50 04/26/99
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> >Well, I have no idea what the move is. After my prog ran on it for awhile, it >gave Rf8 score 0. So I ran Hiarcs 6 (g3/300) for 40 minutes, and it reported >Rf8 also. > >Will I let Crafty run for 12 hours. It couldn't solve it. Wanted to play Rf8 too, but the score was dropping slowly. Anyway, here is the solution: Black's King and Queen are in a cramped position. White's initial moves increase the spatial advantage even more. 1 Bf8+ Kh7 2 Rg7+ Kh8 3 Be7!! (i) Qe1 4 Bf6 (ii) Qxe2+! (iii) 5 Kh1!! (iv) Qe6! (v) 6 Bd4 (vi) Qc4! 7 Ba1 h4 8 Bf6 Qe6 9 Bd4 Qc4 10 Ba1 h3 11 Bf6 Qe6 12 Bd4 Qc4 13 Ba1 h2 14 Bf6 Qe6 15 Bd4 Qc4 16 Ba1 (vii) (i) Intending to bring the Bishop to the long a1-h8 diagonal, threatening discovered check. (ii) Threatening Kh2 and Rg1+. (iii) An attempt at active play. Not so good is 4...Qc1 5 Kh2! Qc2 6 Kh1! Qc4 7 e4! and Black, in zugzwang, must lose the Queen. (iv) The only retreat where the White King need not fear checks. If 5 Kg1, 5...Qe1+ obviously follows, while if 5 Kh3 - 5...Qe6+! (v) Winning a tempo. If Black plays 5...Qc4 at once then 6 Ba1! Which drives Black's Queen out of its hiding place. It is curious that with Black's Queen on c4, it is a mistake on White's part to play 6 Kh2 (instead of 6 Ba1) as 6...Qa6 7 Bd4 Qc4 and now White cannot play 8 Ba1? because of 8...Qa2+. On the other hand, Black cannot play 5...Qxf3+ (instead of 5...Qe6) because of the reply 6 Kh2! and Black's Queen has nowhere to hide. (vi) With this move White starts a Bishop manoeuvre, the three-fold repetition of which puts Black into zugzwang. (vii) And Black's Queen, because of zugzwang, is forced to move into danger. Hoped you enjoyed the problem... Igor
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