Author: Vine Smith
Date: 01:37:30 08/09/03
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On August 09, 2003 at 02:56:47, Alastair Scott wrote: >On August 08, 2003 at 14:44:04, Anthony Cozzie wrote: > > >>Honestly, I think diep played better than crafty that game. By move 44 or so, >>white has a won game . . . >> >>anthony > >[D] 1r2r1k1/5R2/1p1pN2p/p2Pp3/q3Pp2/5P2/1P2QBPP/6K1 w - - 5 44 > >Ironically, 44.Ra7? looks like the decisive mistake (is the rook doing anything >in particular there?) > >I prefer 44.Rc7, but programs generally like 44.Rf6. > >The interesting thing is that everything I've tried (Aristarch, Yace, Ruffian) >thinks the position after move 43 is ~ +3, then comes up with unclear lines. > >Certainly the position is advantageous for White but dangerous because of the >possibility of Black piling in along the c-file; the White knight looks good but >is restricted in its movement ... > >Alastair It is also possible to go back to move 40, where White's rook is already on the c-file, to see where Diep begins to go wrong. The abandonment of the c-file with 40. Rg7+ was not worth Black's measly pawn on g6. Given a little time, Ruffian 1.0.1 comes up with 40. Qf1 instead, with the idea 40...g5 41. Qc1, and then the knight can be menacingly repositioned with Ng7-f5. My own notion was 40. h4, threatening Qe2-a6-a7/b7, and if 40...Rc8 (either rook), then 41. Bxb6, a much more pertinent pawn to take than g6. Perhaps the value of open files should increase significantly in unbalanced material situations where one side has two rooks and the other side has one or none. Regards, Vine Smith
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