Komodo 13.1 Android strange mcts bug?

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Robert Flesher
Posts: 1280
Joined: Tue Aug 18, 2009 3:06 am

Komodo 13.1 Android strange mcts bug?

Post by Robert Flesher »

Komodo 13.1 standard works perfect! What a beast! However the mcts version seems very strange. It cannot win a basic endgame?
For example

[d]3k4/8/8/8/8/8/8/2K1Q3 w - - 0 1
carldaman
Posts: 2283
Joined: Sat Jun 02, 2012 2:13 am

Re: Komodo 13.1 Android strange mcts bug?

Post by carldaman »

The MCTS version has trouble winning simple endgames, Android or not, from what I've seen.
OneTrickPony
Posts: 157
Joined: Tue Apr 30, 2013 1:29 am

Re: Komodo 13.1 Android strange mcts bug?

Post by OneTrickPony »

It's an interesting challenge for MCTS because whatever move you try it will end in a win when you play it out so there is nothing to go by when choosing moves.
I think the solution is not obvious but it seems that either counting distance to mate (if you play it out to the end) or using additional simplistic evaluation function to have some difference between playout results would help. Interesting challenge for Komodo team as not being able to win that one is a bit embarrassing.