Originally posted by Nowakowski
or you swindle someone into playing in a dark kitchen.
Ah ah - but the computer says it was not a swindle but a damn good move.
In a nutshell the horizon effect.
If the computer is only looking 4 ahead and there is a mate in 5
then it won't see it (obviously - it's horizon is set to 4).
So you play a move, it plays a move and suddenly it sees it.
That is when is it starts to to do all these silly moves to stop
the mate. Giving up it's Queen for check etc. etc.
I do recall a game years ago when a computer suddenly did this
and the stong players present and the programmers thought the
machine had broken down.
It turns out the computer had seen a mate (missed by all) and
this was it putting off the mate for as long as possible.
I'll try and dig out the position - it is most likely quite famous
in computer circles. The Box was Black, it was a Kingside fianchetto,
white checks on the back rank and the box blocks the check with
a Queen. That is all I can recall.