Author: Jim Monaghan
Date: 05:10:02 10/26/01
Go up one level in this thread
On October 25, 2001 at 15:27:58, Simon Finn wrote: >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? >> >>[D]r5k1/1p3pbp/2q1p1p1/p1p1P3/n1P5/P1B2N1P/1P2QPP1/3R2K1 w - - acd 13; acn >>32342817; acs 60; bm Bxa5; ce 2; id "IQ.968"; pv Qc2 Nxc3 Qxc3 Qc7 Qe3 a4 Rd3 >>Rc8 Qg5 Re8 Rd6 Bf8 Rd3 Bg7; > >I've seen this posiion discussed here before. > >Wasn't 1. Bxa5 discredited as a winning attempt? > >1. Bxa5 Rxa5 2. Rd8+ Bf8 3. Qd2 Qc7 4. Ng5 > >4...Ra6 5. Ne4 Kg7 6. Nf6 Qxe5 7. Ng4 Qh5 >8. Rxf8 Kxf8 9. Qd8+ Kg7 10. Qf6+ Kf8 11. Qd8+ = > >4...Qxe5 5. Qxa5 Qxg5 6. Qa8 Qc1+ 7. Kh2 Qf4+ 8. Kg1 Qc1+ = > >Am I missing something? IQ.968 - 1. Bxa5 Rxa5 2. Rd8+ Bf8 3. Qd2 Qc7 4. Re8 Kg7 (the threat was 5.Qh6 Qe7 6.Ng5) 5. Qg5 Ra7 (no better is 5...Nb6 6. Qf6+ Kg8 7. Ng5 Ra8 8. Nxe6 Qc6 9. Qg7#) 6. Qf6+ Kg8 7. Ng5 Qd7 8. Rd8 b6 (or 8... Qc7 9. Rxf8+ Kxf8 10. Nxe6+) 9. Rxd7 Rxd7 10. b3 (and white won)
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