Computer Chess Club Archives


Search

Terms

Messages

Subject: I think I found a terrible bug in Tiger

Author: Derek Mauro

Date: 14:55:07 03/22/01


I'm no expert on computer chess, but I thought I'd call this to everyone's
attention.  I was analyzing one of my recent games with Tiger (reg. and gambit),
and had a drawn position(I had black).

[D]8/8/8/8/1n6/2K5/p7/6k1 w - - 0 111

For some reason, in the obvious draw, Tiger gives it -12 and wants to play
Kxb4?? even after like 20 minutes.  All the programs seem to think its about -6
or so, but they all play the correct move, the obvious Kb2.  Is this a bug?
(The 4 piece tablebases will easily solve this bug, but this position is so
incredibly easy that I can't see why it would even need them.)

This next position is also from the same game that all programs seem to have
trouble with, but I don't believe this is a bug.

[D]8/1k6/2n5/8/6r1/p1K5/7R/8 b - - 0 87

Most programs want to play Nb4, but from there white can force a draw.  I think
Ra4 is the correct move (Na5 might also work), but I'm not sure.  I also fell to
the tempation of Nb4 during the game :(

Derek



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.