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Being a five-piece endgame, the rook and bishop versus rook endgame has been fully analysed using computers. Endgame tablebases show that 40.1% of the legal positions with this material are theoretical wins, but that includes many unnatural positions that are unlikely to occur in games.
The bishop and knight mate is one of the four basic checkmates and occurs when the king works together with a bishop and knight to force the opponent king to the corner of the board. The bishop and knight endgame can be difficult to master: some positions may require up to 34 moves of perfect play before checkmate can be delivered.
Black can instead play 1...Rb2, cutting off the white queen with the rook rather than the bishop. However, just as the bishop on b2 interferes with the rook, so the rook on b2 interferes with the bishop, allowing White to play 2.Qf5# (a mate not otherwise possible, because of 2...Be5, blocking the check).
Pure mate is one of a few terms used by composers to describe the properties of a checkmate position; related concepts include economical mate, model mate, and ideal mate. An economical mate is a position such that all of the attacker's pieces [ a ] contribute to the checkmate, with the (optional) exception of the king and the pawns.
In the final position, Morphy's remaining bishop and rook were used to give an economical mate. [9] The position nearly qualifies as a pure mate (and thus as a model mate), but it fails on one point: the black king cannot access f8 both because it is occupied by a friendly bishop, and also because the square is guarded by the checking rook.
The rook cannot jump over pieces. The rook may capture an enemy piece by moving to the square on which the enemy piece stands, removing it from play. The rook also participates with the king in a special move called castling, wherein it is transferred to the square crossed by the king after the king is shifted two squares toward the rook.
In chess, scholar's mate is the checkmate achieved by the following moves, or similar: 1. e4 e5 2. Qh5 Nc6 3. ... White kings Bishop to the queens Bishops fourth house
For instance, if Black is playing Cheerful Central Rook, then if White deviates from the jouseki and blunders by creating a wall with either of their silvers (S-62 or S-42), then Black will give a double check with their rook and promoted bishop rendering an 11-move mate as follows: [7] [8]