ভ্যারিয়েশন ও ক্রম

A model that organizes the possible moves being considered and the replies as branching paths from the current position.

A concrete sequence of moves and replies examined from a particular position.

A branch is one move option and the chain of replies that grows from it during calculation.

The exact sequence in which related moves are played, which can change the available replies and the final result.

A transposition occurs when different move orders lead to the same legal chess position.

A move that sharply reduces the opponent's legal or reasonable replies.

A move imposed by legality or by such an urgent threat that the other replies clearly fail.

The single move that meets a decisive condition, such as remaining legal, avoiding defeat, or preserving an advantage.

A series of moves in which the relevant replies are highly restricted because the alternatives fail concretely.