Author: Bruce Moreland
Date: 10:43:10 01/12/00
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On January 12, 2000 at 10:02:08, Vincent Diepeveen wrote: >Let's zoom into position #8 not found by Deep Thought > [D]r3rbk1/ppq2ppp/2b1pB2/8/6Q1/1P1B3P/P1P2PP1/R2R2K1 w - - bm Bxh7; 8 > >This position is of course in nolot as PC programs don't extend such >lines too deeply. Just like the other nolots it only has to do with >king safety and a lot of forced moves around the king. > >[c] ==> check extension >[s] ==> singular best move extension >[f] ==> forced move (a forced move is singular too) extension > >the TACTICAL line needed to find Bxh7: > >Bxh7+ Kxh7[c] >Qh5+ Kg8[c] >Rd4[s] gf6[f] Hsu points out that gxf6 is bad, and suggests that Bf3! holds. bruce >Rg4+[s] Bg7[c] >Qh6[s] Kf8[f] >Rxg7 Rec8 >Qxf6 Be4[f] (otherwise rh7-h8 mate) >Rae1[s] Bf5[f] >g4[s] Bxc2[f] >Rxe6[f] Bd3 >Rg6[c] Qc1+ >Kh2[c] Qc7+ >f4[c] Qc2+ >Kg3[c] <any legal move> >Qh8 mates in quiescencesearch.
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