Author: Uri Blass
Date: 08:47:59 11/06/03
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On November 06, 2003 at 11:04:03, Stefan Knappe wrote: >Hi José, > >> This position is easy, but interesting: >> >> r2qk2r/pp3ppp/2pbpn2/4Nb2/PnBP2P1/2N1P3/1P3P1P/R1BQ1RK1 b kq g3 0 1 > >6/16 0.34 -11 31381 f5c2 d1f3 e8g8 b2b3 b4d5 c1b2 >6/16 0.42 -9 44038 f6g4 e5g4 d8h4 b2b3 b4d5 <c1b2> >7/21 0.86 12 109589 f6g4 e5g4 d8h4 g4e5 d6e5 d4e5 <h4c4> <d1d6> >8/22 2.11 62 298652 f6g4 e5g4 d8h4 g4e5 d6e5 d4e5 h4c4 <d1d6> <c4g4> <g1h1> ><b4d5> >9/27 6.47 46 1017372 f6g4 e5g4 d8h4 h2h3 h7h5 c4e2 h5g4 e3e4 f5g6 g1h1 b4d5 >10/31 22.09 96 3418183 f6g4 e5g4 d8h4 h2h3 h7h5 c4e2 h5g4 e3e4 f5g6 g1h1 <b4d5> >11/37 1:12 110 10900548 f6g4 e5g4 d8h4 f2f3 f5g4 d1d2 g4h3 c3e4 d6e7 g1h1 > >Matador finds Nxg4 at ply 6. In QSearch I only do SEE, good captures, some >promotions and stand-pat with eval >= beta. > >Regards, >Stefan Maybe it is because of evaluation. If you have a big score for bishop at h3 when there is no pawn at g2 it may cause you to find it fast. You need to calculate lines like Nxg4 Nxg4 Qh4 h3 h5 Nh2 Bh3 and if you have no special extensions for them you cannot see it in 6 plies. Uri
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