Author: Simon Finn
Date: 03:56:51 10/25/01
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On October 24, 2001 at 16:31:14, Dann Corbit wrote: >Each of these 9 problems is unsolved on Crafty or Yace on my machine in one >minute. Does your program solve any of them, and if so, what is the score that >it finds? > [snip] >[D]2k3r1/pp6/2b1p3/2P1q3/1PP3Bp/3Q3P/P7/3R2K1 b - - acd 11; acn 32686372; acs >62; bm Qf5; ce -31; id "IQ.942"; pv Qb2 Qd2 Qe5 Qe1 Qf5 Rd4 Kc7 Qd2 Qb1+ Kf2 e5 >Rd6 Kb8; Are we sure that the supposed solution is correct? As far as I can see, 1...Qf5 can be answered by 2. b5 with advantage to White. For example: 1...Qf5 2. b5 Qxc5+ 3. Qd4 Qxd4+ 4. Rxd4 Bf3 5. Kf2 Bxg4 6. Rxg4 and White has the advantage in the rook endgame (6.. Rxg4? 7. hxg4 e5 8. Kf3 Kd7 9. g5 Ke6 10. Kg4 +-) 1...Qf5 2. b5 Bf3? 3. Qd7+ Kg8 4. Qd8+ Rxd8 5. Rxd8+ Kc7 6. Bxf5 Kxd8 7. Bxe6 +- 1...Qf5 2. b5 Rxg4+ 3. hxg4 Qxg4+ 4. Kf2 Qf4+ 5. Ke1 Qh4+ 6. Kd2 Does Black have enough for the exchange? So perhaps 1...Qb2 (or something else?) is a better try for Black? Or am I missing something? Simon
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