Author: Ed Schröder
Date: 23:36:01 04/01/02
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On April 01, 2002 at 18:48:39, Martin Giepmans wrote: >On April 01, 2002 at 17:51:15, Ed Schröder wrote: > >>[d]8/7N/1k2pp2/3P4/8/8/2r5/5K1R w - - 0 1 >> >>Solution: >> >>1. dxe6 Rc1+ 2. Kf2 Rxh1 3. e7 Rh2+ 4. Kf3 Rh3+ 5. Kf4 Rh4+ 6. Kf5 Rh5+ >>7. Kxf6 Rh6+ 8. Kf5 Rh5+ 9. Kf4 Rh4+ 10. Kf3 Rh3+ 11. Ke2 Rh2+ 12. Kd3 >>Rh3+ 13. Kd4 Rh4+ 14. Kd5 Rh5+ 15. Kd6 Rh6+ 16. Nf6 Rxf6+ 17. Kd5 Rf5+ >>18. Kd4 Rf4+ 19. Ke3 Rf1 20. Ke2 1-0 >> >>1.dxe6 is easy, I assume every chess program will find it instantly. >> >>Difficult to find is 2.Kf2!! >> >>And that's the hard challenge for your favorite engine. >> >>Ed > > >My Spider shows Kf2 in the PV after 42 seconds (AMD 1200, no TB): > >13 00:00:42 + 1.18 D5xE6 C2-C1 F1-F2 C1xH1 E6-E7 H1-H2 F2-F3 H2-H3 F3-F4 > H3-H4 F4-F5 H4-H5 F5xF6 H5-H6 F6-F5 H6-H5 H7-G5 H5-H8 > G5-F7 H8-G8 F5-E5 > >Martin Congrats! It must be eval, no? Ed
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