Author: Bruce Moreland
Date: 14:46:12 01/09/01
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On January 09, 2001 at 10:57:47, Vincent Diepeveen wrote: >The only position i couldn't checkout to be correct was the Ng5 position: >[D]r4r1k/4bppb/2n1p2p/p1n1P3/1p1p1BNP/3P1NP1/qP2QPB1/2RR2K1 w - - > >My program initially is not so happy but from 10 ply and further it >gets very happy about Rxc5 here. I feel Ng5 is also a very correct >sacrafice (for sure you need to sacrafice 2 pieces >before any mating chances against black gets clearer) >but the real line is hard for me to find, and the difference between Rc5 >and Ng5 is very unclear for me as in all lines i tried myself with Ng5 i >also had to do Rxc5 sooner or later... Mine has been going on this for a couple of days and thinks that Nxh6 wins a pawn. It's a pretty nasty looking pawn though. The line is: 1. Nxh6 Bg6 2. Nxf7+ Bxf7 3. Rxc5 Bxc5 4. Ng5 Be7 5. Nxf7+ Rxf7 6. Bxc6 Rc8 7. Bb7 Rcf8 8. Be4 Kg8 9. Bg6 Rf5 10. Bxf5 Rxf5 11. h5 a4 12. h6 gxh6 13. Bxh6 Qd5 17 plies, +1.20. I don't know if that or preceding positions are won or lost, but I think that final position looks a bit crazy to be evaluating statically. I've been waiting on ply 18 for a half-day or so. bruce
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