Author: Vincent Diepeveen
Date: 17:58:25 05/29/01
Go up one level in this thread
On May 29, 2001 at 18:51:32, Peter Fendrich wrote: >On May 29, 2001 at 17:43:32, Vincent Diepeveen wrote: > >>On May 29, 2001 at 14:21:13, Peter Fendrich wrote: >> >>Oh well DIEP knows. +2.4 at 1 ply. At 10 ply it sees Rxh7 wins here. > >After 1 ply, that's interesting. How come? >Is it the h-file with Q and R that evaluates so high? >//Peter > >> >>Analysis mode is on >>Process 1: engineflags=0 msk=1 >>process 0: engineflags = 0 denktime=10000000 maxtime=10000000 >>00:00 0 0 16 (0) 1 -2.661 Rh2xh7 >>00:00 0 0 18 (0) 1 -0.096 Bc1-d2 >>00:00 0 0 19 (0) 1 2.244 Bc1-f4 Move at ply==1 not to h-file scores already 2.244 so 0.2 pawns diff as Qh3. So obviously diep KNOWS that the rook on b3 is bad and the bishop on h8 a pawn. Best regards, Vincent >>00:00 0 0 20 (0) 1 2.338 Bc1-h6 >>00:00 0 0 30 (0) 1 2.424 Qg4-h3 >>00:00 0 0 102 (0) 2 2.059 Qg4-h3 h7-h5 >>++ c1-h6 >>00:00 0 0 180 (0) 2 2.330 Bc1-h6 Rc8-c7 >>++ g1-f1 >>00:00 0 0 324 (0) 2 2.389 Kg1-f1 Rc8-c7 >>00:00 0 0 511 (0) 3 2.813 Kg1-f1 Rc8-c7 Bc1-h6 >>00:00 0 0 2024 (109) 4 2.676 Kg1-f1 Rc8-c4 Bc1-g5 h7-h5 >>00:00 0 0 4805 (612) 5 2.862 Kg1-f1 Rc8-c7 Bc1-g5 h7-h5 Qg4-f3 >>00:00 0 0 20743 (2178) 6 2.801 Kg1-f1 Rc8-c7 Bc1-f4 Rc7-a7 Qg4-h4 h7-h5 >>++ g4-g5 >>00:01 0 0 48069 (4983) 6 3.200 Qg4-g5 Rc8-c7 Qg5-h6 Bh8xf6 e5xf6 Rc7-a7 >>00:02 0 0 111010 (27730) 7 3.046 Qg4-g5 b5-b4 a3xb4 Bh8-g7 f6xg7 Qf7-c7 >>00:03 0 0 159921 (27826) 8 3.046 Qg4-g5 b5-b4 a3xb4 Bh8-g7 f6xg7 Qf7-c7 >>++ g4-f4 >>00:06 0 0 355823 (49857) 8 3.255 Qg4-f4 b5-b4 a3xb4 a4-a3 b2xa3 Rc8xc3 Qf4-h6 Rb >>3-b1 Rf2-f1 Rc3-d3 >>++ g4-h4 >>00:09 0 0 608418 (122359) 8 3.331 Qg4-h4 Rc8-c7 Qh4-h6 Qf7-f8 Qh6xf8 Kg8xf8 Bc1- >>h6 Kf8-g8 Kg1-f1 Rc7-a7 Bh6-g5 >>00:11 0 0 753139 (131981) 9 3.251 Qg4-h4 Rc8-c7 Qh4-h6 Qf7-f8 Kg1-f1 Qf8xh6 Bc1x >>h6 Rc7-a7 Rf2-g2 Ra7-c7 >>00:19 0 0 1420756 (225721) 10 3.251 Qg4-h4 Rc8-c7 Qh4-h6 Qf7-f8 Kg1-f1 Qf8xh6 Bc >>1xh6 Rc7-a7 Rf2-g2 Ra7-c7 >>++ h2-h7 >>00:26 0 0 1973111 (340336) 10 3.816 Rh2xh7 Kg8xh7 Qg4-h4 Kh7-g8 Rf2-h2 Bh8xf6 e5 >>xf6 Kg8-f8 Qh4-h8 Qf7-g8 f6-f7 Qg8xh8 Rh2xh8 Kf8xf7 Rh8xc8 g6-g5 Kg1-f2 Kf7-f6 >>00:30 0 0 2208785 (358380) 11 3.816 Rh2xh7 Kg8xh7 Qg4-h4 Kh7-g8 Rf2-h2 Bh8xf6 e5 >>xf6 Kg8-f8 Qh4-h8 Qf7-g8 f6-f7 Qg8xh8 Rh2xh8 Kf8xf7 Rh8xc8 g6-g5 Kg1-f2 Kf7-f6 >>00:43 0 0 3279682 (440907) 12 4.286 Rh2xh7 Kg8xh7 Qg4-h3 Kh7-g8 Rf2-h2 Bh8xf6 e5 >>xf6 Kg8-f8 Qh3-h8 Qf7-g8 Rh2-h7 g6-g5 f6-f7 Qg8xh8 Rh7xh8 Kf8xf7 Rh8xc8 g5-g4 Kg >>1-f2 Kf7-f6 Rc8-g8 >>quit >>Waiting for other processes to end >> Proces 1 quitted >> >> >> >>>This position appeared in an ICC game: Guitje - TerraPi >>> >>>[D]2r3kb/5q1p/4pPp1/1p1pP3/p2P2Q1/PrP5/1P3R1R/2B3K1 w - - 0 42 >>> >>>the last move from Terra was 41... b5 >>>Some moves earlier when white made g6, Terra decided to move the bishop from g7 >>>to h8. >>>Both Rb3 and Bh8 are locked in and Terra is absolutely unaware of the >>>hopeless situation. Yes, Terra lost... >>> >>>I see two different but connected problems for computer programs here: >>> - the closed position itself >>> - the two blocked pieces. >>> >>>How do you solve/avoid positions like this? Terra has about equal eval for this >>>position. >>>It is of course possible to punish pawn chains like this in order to avoid >>>closed positions but is that really a solution and how to deal with blocked >>>positions? >>> >>>//Peter
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