Author: Robert Hyatt
Date: 11:09:18 03/02/06
Go up one level in this thread
On March 02, 2006 at 12:02:16, Charles Roberson wrote: > > But what happens when you step through the game??? > I took insufficient material tests out of the interior nodes > and it found the mate in analysis mode. > > BUT !!!! > When I then had it play both sides of the remaining plies, > it announced draw as soon as it (as black) took the queen with the bishop. > > Sort of hate to see the mate then draw in move makeing. This: White(1): 1r5k/4NP1b/7K/8/6R1/8/8/8 w - - 0 1 White(1): move clearing hash tables time surplus 0.00 time limit 22.50 (+0.00) (3:30) depth time score variation (1) 1 0.00 4.60 1. Rg7 1-> 0.00 4.60 1. Rg7 2 0.00 4.24 1. Rg7 Be4 2 0.00 +1 1. Rg8+!! 2 0.00 +3 1. Rg8+!! 2 0.00 +M 1. Rg8+!! 2 0.00 Mat03 1. Rg8+ Rxg8 2. fxg8=Q+ Bxg8 3. Ng6# 2-> 0.00 Mat03 1. Rg8+ Rxg8 2. fxg8=Q+ Bxg8 3. Ng6# 3 0.00 Mat03 1. Rg8+ Rxg8 2. fxg8=Q+ Bxg8 3. Ng6# 3-> 0.00 Mat03 1. Rg8+ Rxg8 2. fxg8=Q+ Bxg8 3. Ng6# 4 0.01 Mat03 1. Rg8+ Rxg8 2. fxg8=Q+ <EGTB> 4-> 0.03 Mat03 1. Rg8+ Rxg8 2. fxg8=Q+ <EGTB> 5 0.04 Mat03 1. Rg8+ Rxg8 2. fxg8=Q+ <EGTB> 5-> 0.05 Mat03 1. Rg8+ Rxg8 2. fxg8=Q+ <EGTB> time=0.05 mat=1 n=3803 fh=98% nps=1.00M ext-> chk=299 1rep=103 mate=2 predicted=0 nodes=3803 evals=2261 50move=0 endgame tablebase-> probes=11 hits=11 SMP-> split=0 stop=0 data=0/64 elap=0.05 mate in 3 moves. White(1): Rg8+ time used: 0.05 Black(1): Rg8 Black(1): Rg8 time used: 6.94 time surplus 29.95 time limit 22.87 (+0.00) (3:33) [easy move] depth time score variation (1) 1 0.00 2.62 2. Nxg8 1 0.00 Mat02 2. fxg8=Q+ <EGTB> 1-> 0.00 Mat02 2. fxg8=Q+ <EGTB> 2 0.00 Mat02 2. fxg8=Q+ <EGTB> 2-> 0.01 Mat02 2. fxg8=Q+ <EGTB> 3 0.01 Mat02 2. fxg8=Q+ <EGTB> 3-> 0.01 Mat02 2. fxg8=Q+ <EGTB> 4 0.01 Mat02 2. fxg8=Q+ <EGTB> 4-> 0.01 Mat02 2. fxg8=Q+ <EGTB> time=0.01 mat=-4 n=166 fh=100% nps=1.00M ext-> chk=12 1rep=0 mate=0 predicted=0 nodes=166 evals=27 50move=0 endgame tablebase-> probes=0 hits=0 SMP-> split=0 stop=0 data=0/64 elap=0.01 mate in 2 moves. White(2): fxg8=Q+ time used: 0.01 Black(2): Bg8 time used: 11.41 time surplus 59.94 time limit 23.27 (+0.00) (3:37) [easy move] depth time score variation (1) 1 0.00 Mate 3. Ng6# 1-> 0.00 Mate 3. Ng6# 2 0.01 Mate 3. Ng6# <EGTB> 2-> 0.01 Mate 3. Ng6# <EGTB> 3 0.01 Mate 3. Ng6# <EGTB> 3-> 0.01 Mate 3. Ng6# <EGTB> 4 0.01 Mate 3. Ng6# <EGTB> 4-> 0.01 Mate 3. Ng6# <EGTB> time=0.01 mat=0 n=6 fh=100% nps=1.00M ext-> chk=4 1rep=0 mate=0 predicted=0 nodes=6 evals=1 50move=0 endgame tablebase-> probes=1 hits=1 SMP-> split=0 stop=0 data=0/64 elap=0.01 White(3): Ng6# 1-0 {White mates} time used: 0.01 I only call something a draw if the search returns a draw score. I then have some code to discover why it is a draw (insufficient material, etc) but I don't use that here at all...
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.