Author: M Hurd
Date: 16:19:49 03/04/06
Go up one level in this thread
On March 04, 2006 at 16:30:09, Charles Roberson wrote: > > > Telepath drew a won endgame in a blitz match this week. The position is: > 8/8/8/5BB1/8/3p1kpp/7P/7K w - - 0 76 > > It only searched 6 ply and played Bxh3. > At 10 ply it played Bxd3. > > Seems to me the better move is Bxd3 or h2xg3. > I've tried upping the outside passer value by 4x and adjusting > the code to call the d3 pawn an outside passer. Now, it makes > Bxd3 at 9 ply and h2xg3 at 10 ply then Bxd3 at 11 ply. > > Seems I should be able to adjust it to see this earlier or would > that be overtuning? Hello Charles Rybka finds hxg3 in 4 secs as mate in 21 New game - Rybka 1.01 Beta 13d 32-bit, 120'/40+60'/20+30' 8/8/8/5BB1/8/3p1kpp/7P/7K w - - 0 1 Analysis by Rybka 1.01 Beta 13d 32-bit: 1.Bxd3 +- (6.63) Depth: 3 00:00:00 1.Bxd3 +- (7.13) Depth: 4 00:00:00 1.Bxd3 Kg4 +- (5.80) Depth: 5 00:00:00 1.Bxd3 Kg4 2.Bc1 +- (6.69) Depth: 6 00:00:00 6kN, tb=4 1.Bxd3 Kg4 2.Bc1 g2+ 3.Kg1 Kh5 +- (6.69) Depth: 7 00:00:00 12kN, tb=19 1.Bxd3 Kg4 2.Bc1 gxh2 3.Kxh2 Kh5 4.Bf5 +- (6.75) Depth: 8 00:00:00 35kN, tb=79 1.Bxd3 Kg4 2.Bc1 Kf3 3.Bf5 Kf2 +- (6.75) Depth: 9 00:00:00 70kN, tb=392 1.Bxd3 Kg4 2.hxg3 Kf3 3.Kh2 Kf2 4.Kxh3 +- (7.69) Depth: 10 00:00:00 159kN, tb=893 1.Bxd3 Kg4 2.hxg3 Kf3 3.Kh2 Kg4 4.Bc1 Kf3 +- (7.69) Depth: 11 00:00:00 319kN, tb=1680 1.Bxd3 g2+ 2.Kg1 Kg4 3.Bc1 Kh5 4.Bf5 Kh4 5.Be3 Kh5 6.Bxh3 +- (7.69) Depth: 12 00:00:01 592kN, tb=4979 1.hxg3 d2 2.Bxd2 Ke2 3.Kh2 Kf3 4.Bh6 Ke2 5.Bd3+ Kd1 +- (11.40) Depth: 12 00:00:02 765kN, tb=7854 1.hxg3 d2 2.Bxd2 Ke2 3.Kh2 Kf3 4.Bh6 Ke2 5.Bd3+ Kd1 6.g4 +- (11.76) Depth: 13 00:00:03 991kN, tb=10788 1.hxg3 d2 2.Bxd2 Ke2 3.Kh2 Kf3 4.Kxh3 Kf2 5.Bd3 Kf3 6.Be3 +- (#21) Depth: 14 00:00:04 1266kN, tb=16899 Regards Mike
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