Assertion: checkmate | /r/HasProperty | forced at most thirty-three moves
Facets:
value: from any starting position
type: LOCATION
value: except those
type: OTHER
Source sentences:
text: With the side with the bishop and knight to move, checkmate can be forced in at most thirty-three moves from any starting position, except those in which the defending king is initially forking the bishop and knight and it is not possible to defend both.
text: With the stronger side to move and with perfect play, checkmate can be forced in at most thirty-three moves from any starting position where the defender cannot quickly win one of the pieces.