Yeaaaah! first win against Kata! http://www.yss-aya.com/cgos/viewer.cgi?9x9/SGF/2020/05/09/999849.sgf
In addition to the optimized batch size, I did two other things: - I use two batches of 63 instead of one, with double buffering, so that the GPU is kept 100% busy. About 14k nodes per second now. - I make the search less selective, by using a bigger exploration constant in the MCTS formula. I should download Katago and CLOP my search parameters against it. So far I have tried to keep the "Zero" philosophy of using self-play only, but playing against other opponents is very likely to be a better approach at making progress. Rémi
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