Author: Richard Pijl
Date: 07:52:40 12/14/03
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On December 14, 2003 at 10:07:15, Jon Dart wrote: >A recent game between Arasan and The Baron on ICC led to this position: > [D] 1k3nr1/p2r1p2/1p1PpQ2/2q5/P2R1PP1/5KB1/3R4/8 w - - 0 1 > >Here, Arasan actually thinks Black is ahead, by over a pawn. The reason >is that it gives a high king safety penalty to White, since White's >king is on the third rank, and since the rook on g8 atacks a pawn >near the king. But in truth, Black does not have an attack. > >Black does not get a high king safety penalty because his king is >behind the pawns on the 1st rank, and because no White pieces are >near enough to trigger a "proximity" score. > >Also Arasan does not give White a high score for the pawn on d6, because >it is blocked by the Black rook. But the pawn is dangerous. > >Crafty gives about a 1/2 pawn advantage to White here, which seems much >more reasonable (Black lost this game). There is no quick win here, but >Black is in trouble. The Baron liked its own position here. It immediately values the position with over half a pawn for white. Elements valued by the Baron: - passer on the 6th rank without minor pieces to block it - Intact pawn shield in front of the white king - Space advantage for white ply time nodes score pv 4( 8). 0:00.11 12634 +0.52 Rd4-e4 Qc5-a3 Re4-e3 Qa3xa4 Qf6-c3 5( 9)> 0:00.16 24203 +0.19 Qf6-h6 5( 9)& 0:00.16 26556 +0.50 Qf6-h6 f7-f5 g4-g5 Qc5-c6 Kf3-f2 Nf8-g6 5( 9)> 0:00.22 29225 +0.51 Qf6-e5 5( 9)& 0:00.22 34190 +0.64 Qf6-e5 Qc5-c3 Rd2-d3 Qc3-c2 Qe5-b5 f7-f6 5(10). 0:00.33 53277 +0.64 Qf6-e5 Qc5-c3 Rd2-d3 Qc3-c2 Qe5-b5 f7-f6 6(11)& 0:00.44 76270 +0.76 Qf6-e5 Qc5-c3 Rd2-d3 Qc3-c2 Qe5-b5 f7-f5 g4-g5 6(13). 0:00.55 92510 +0.76 Qf6-e5 Qc5-c3 Rd2-d3 Qc3-c2 Qe5-b5 f7-f5 g4-g5 7(15)& 0:01.04 172139 +0.79 Qf6-e5 Qc5-c6 Qe5-e4 Qc6-c3 Rd2-d3 Qc3-c5 Qe4-e1 Nf8-h7 Qe1-c3 7(17). 0:01.26 224697 +0.79 Qf6-e5 Qc5-c6 Qe5-e4 Qc6-c3 Rd2-d3 Qc3-c5 Qe4-e1 Nf8-h7 Qe1-c3 8(18)& 0:03.18 609492 +0.79 Qf6-e5 Qc5-c6 Qe5-e4 Qc6-c1 Qe4-e1 Kb8-b7 8(22). 0:03.95 792589 +0.79 Qf6-e5 Qc5-c6 Qe5-e4 Qc6-c1 Qe4-e1 Kb8-b7 9(22)& 0:09.45 2044084 +0.73 Qf6-e5 Qc5-c6 Qe5-e4 Qc6-c1 Rd2-d1 Qc1-c3 Rd1-d3 Rg8-g5 Rd3xc3 Rg5xg4 9(22). 0:12.96 2846018 +0.73 Qf6-e5 Qc5-c6 Qe5-e4 Qc6-c1 Rd2-d1 Qc1-c3 Rd1-d3 Rg8-g5 Rd3xc3 Rg5xg4 10(26)& 0:28.23 6382608 +0.73 Qf6-e5 Qc5-c6 Qe5-e4 Qc6-c3 Rd2-d3 Qc3-c1 Rd3-d1 Qc1-c3 Rd1-d3 <rep> 10(26). 0:37.62 8582334 +0.73 Qf6-e5 Qc5-c6 Qe5-e4 Qc6-c3 Rd2-d3 Qc3-c1 Rd3-d1 Qc1-c3 Rd1-d3 <rep> Richard.
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