It is using 0x88 move generation. The function is something under 200 lines long, which seems big, but there are a lot of comments and there's some repeated code.
It is using vanilla windowed alpha-beta with no PVS or anything like that, and I plan to keep it this way, since that is clear and performs acceptably.
This is already a more or less fully functional winboard engine, an effort that consumed a whole bunch of time, not that Mann's standard is hard to write to. I just had to spend a lot of time messing with threads.
an open source chess engine under the GNU General Public License [1], written by Bruce Moreland, written for educational purposes. It has a decent search (null move pruning, hash tables) but a rudimentary evaluation [2].
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