--- a/src/chess/knight.c Tue Jun 03 08:43:17 2025 +0200 +++ b/src/chess/knight.c Wed Jun 04 23:56:40 2025 +0200 @@ -31,7 +31,7 @@ #include "rules.h" #include <stdlib.h> -_Bool knight_chkrules(Move *move) { +bool knight_chkrules(Move *move) { int dx = abs(move->fromfile - move->tofile); int dy = abs(move->fromrow - move->torow);