Author: Dann Corbit
Date: 20:03:23 04/12/01
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On April 12, 2001 at 13:24:02, Dann Corbit wrote: [snip] >> #230 Rb7-a7 additional solution >> Rb7-b5 additional solution >> Rb7-b6 additional solution >> Rb7-d7 additional solution >> Rb7-f7 additional solution >> Rb7-g7 additional solution >> Rb7-h7 additional solution >> Kc6-b5 additional solution >> Kc6-b6 additional solution >> Kc6-d7 additional solution >> Bc8-d7 additional solution >> a5-a4 additional solution >> Rb7-c7 additional solution >No way. >Rb4 is the only winning move, and it is a winning move. All the others are >foolish time wasters. [snip] >>#230 [Rb4 does not win. The main line is, 1... Rb4!? 2. cxb4 a4 >> 3. b5+ Kxb5 4. Ba3 c3 5. Re2! Kc4 6. f4 Kxd4 7. f5 exf5 8. e6 Kd3 >> 9. e7 Bd7 10. Kf3 d4 11. Rh2 Kc4 12. Rh8 b2 13. Rb8 d3 >> 14. Bxb2 cxb2 15. Rxb2 a3 16. Rb7 Be8 17. Ra7 Kb3 18. Ke3 a2 >> 19. Kxd3 Kb2 20. Rb7+ Kc1 21. Ra7 =] >> >> Ra7, Rb6, Rb5, Rd7, Rf7, Rg7, Rh7, Bd7, Kd7, Kb6, Kb5, a4, and Rc7 >> are just as good as the book solution Rb4 -- they all hold the game. Drat. I think you are right. That's too bad, because this was the best example of a blocked position that I knew of. Turns out, it's bugged if you search deep enough. (I think. I am researching it overnight with computer analysis). But it looks pretty sure that the proposed solution is broken. That's quite a find.
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