Game-AI Forum

Using a transposition table is a good idea, and is rather common. It should make the program stronger. You should not have to keep pointers to parents. If I understand what you do correctly, you may get very different "parent_visit_count" for every child of a node. This does not seem good...

Hi, Has anyone ever tried adding a transposition table to an UCT/MCTS implementation? I tried without much success. It works, but it plays worse than the non-tt version. What I do is: for each position I have a node. This node stores pointers to children (of course as it is a tree) and to all the pa...

Slight increase to 355 playouts per second (1 thread, 61 stones per playout on average) Which board size? You must be doing something very wrong. Boardsize 9. This version still recreates every chain (string) and so on. I transformed the current version into an incremental, but it played even worse...

Slight increase to 355 playouts per second (1 thread, 61 stones per playout on average)

I have just run a benchmark, and Crazy Stone does 4366.81 simulations per second on 19x19, from the empty starting position (Ryzen 7 5800X). This is with patterns and many advanced heuristics. So yes, your playouts are slow. Without heuristics, it may be around 10k per second. You must be doing som...

Hi,

My single threaded program performs 216 playouts per second (on average 62 'moves').
That's not a lot is it? Or is it?

Would it make sense for my tournament software to start with a few randomly placed stones for both sides? In case neither of the players has a way of randomizing and would play the same game over and over again?

Does Go have something like an opening book?
In what format is it?

If not: is there a standard way of hashing a Go board? (independent of the dimensions?)

Would it make sense to include self-play in the statistics?
My manager now plays n * (n - 1) where -1 to prevent self versus self.

Rank Name Elo + - games score oppo. draws 4 donaldbaduck-7be77f6 1348 12 12 10000 60% 1197 4% 6 Stop 867 5 5 179040 57% 865 0% Yet on cgos: — Stop-0.9-005 1061 247837 2021-11-02 12:51:22 1232142 donaldbaduck7be77f 542? 60 2021-11-02 12:39:19 oooooh hang on: different versions of 'stop' possibly [.....