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Shogi ZIP file. Optimized ZRFs for Japanese Chess and some recent variants.[All Comments] [Add Comment or Rating]
🕸📝Fergus Duniho wrote on Thu, Mar 20, 2003 01:14 AM UTC:
I just updated the Shogi ZRF again. I added a new tuning. This is tuning
#7, which currently stands at second place. The first place tuning is
currently #1, and #5 is coming in third.

My ZRF avoids bogus moves as much as possible. To raise the value of
pieces that can be dropped, it merely splits drops between the King and
the piece. Giving drops to the piece increases its value, but having the
King handle its drops does not. To increase the value of other pieces, I
give them a measured amount of drops. These drops could be used if they
showed up in-hand, but they never do. For optimization, I use directions
instead of zones to check whether a piece is in-hand. I use up and down
for in-hand areas, but I avoid using these directions on the main board.