Author: Gerd Isenberg
Date: 16:26:01 04/21/04
Go up one level in this thread
On April 21, 2004 at 18:51:32, Sune Fischer wrote: >On April 21, 2004 at 18:22:32, Sune Fischer wrote: >>> >>>5..a5 looks interesting. >>>Does your trapped code ignore that possible lever or did you consider that b4 is >>>defended by a pawn on a3? >> >>It looks like it is trying to break out the bishop, after axb4 axb4 it doesn't >>see the bishop as trapped anymore, there is a hole in the cage. >> >>It belives it can get out via b6, a5 and now attack b4 which has become a >>non-fortress pawn. >> >>It's not so easy too repair, if I mask out the forbidden squares between fills >>so it doesn't stop and turn on an enemy square, then I also mask out a lot of >>the trapped detection squares. > >Well it wasn't as hard as I thought, no more a5 :) > >[D]1k1r3r/b1p1n3/2p2pq1/1pP1p3/1P2P2p/3P1P2/2Q1NKP1/R1B3R1 b - - 0 1 I see, the position where the bishop is still trapped with worse king safety, as you count the unattackable (by pawns) and rammed knight pawn on b4, defending own c5-fortress pawn as fortress pawn too. >6 212 27 99752 1...Rhg8 2.Rg1 Qh7 3.f4 h3 4.Ng3 >6 211 27 104312 1...h3 >6 205 30 118092 1...h3 2.gxh3 Rxh3 3.d4 Rh2+ 4.Ke3 Nd5+ 5.Kd3 a5 >7 188 44 245599 1...h3 2.gxh3 Rxh3 3.Be3 Rh2+ 4.Ke1 Qg2 5.f4 >8 165 77 529242 1...h3 2.gxh3 Rxh3 3.Be3 Rh2+ 4.Ke1 Qg2 5.d4 Qxf3 >9 162 352 2748616 1...h3 2.g3 h2 3.Bb2 a5 4.d4 Nd5 5.Qb3 a4 >10 162 516 4138520 1...h3 2.g3 h2 3.Bb2 Rh3 4.d4 exd4 5.Bxd4 Rdh8 6.Rh1 Rd8 >11 162 883 7242929 1...h3 2.g3 h2 3.Bb2 Rh3 4.d4 exd4 5.Bxd4 Rdh8 6.Rh1 Nd5 >12 172 3095 25599202 1...h3 2.g3 h2 3.Bb2 Rh3 4.d4 exd4 5.Bxd4 Rdh8 6.Rh1 Rd8 >7.a4 Nd5 > >-S.
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