Hi,
I attempted to learn patterns from pro games, and use that to search
very deep (a bit like a MCTS playout, but I - foolishly - tried to do
just one best playout). One of the main concepts was treating local
sequences as a single move. A simple example is the 4-move hane-tsugi
sequence [1] in the endgame. But it also applied to middle game invasion
joseki, and opening joseki.
So, I'd do all the tactical search, find the patterns (which were
enriched with tactical chain status), then if a hane-tsugi pattern
matched and was the most urgent pattern, play those 4 moves as if a
single move. Then recalculate tactical search and repeat. This is
obviously 4 times quicker, so allowed me to get deeper in the tree. (The
patterns were fairly large, especially when combined with tactical
information, so handle the more advanced [2] variations.)
I'd just like to point out that you shouldn't do this if there is a ko
going on. ;-)
Regards,
Michael
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