fix unnecessary disambiguation + simplify get_real_threats() code

fix regression: pieces could not threaten fields when pinned

fix regression: pawns cannot block check threats

fix regression: missing promotion when simulating threats

fix bug when parsing checkmate indicator

major refactoring of rules API

add dependency on fen.h for rules.c

(0) -100 -30 -10 -7 +7 +10 +30 tip

mercurial