RobotGymnast/Chess — comment on commit 7d198cb2ef375f3f1e3f5379251b71361e75467e
File: src/Game/Logic.hs line 211
By wowus:

Is there a particular reason you used foldl as opposed to foldl'? Foldl is generally ill-advised unless the function you're folding is lazy in its left argument and that laziness is desirable.