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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.
With the stronger side to move, checkmate can be forced in at most thirty-three moves from almost any starting position. [1] [2] Although it is classified as one of the four basic checkmates, [3] [a] the bishop and knight checkmate occurs in practice only approximately once in every 6,000 games. [4]
There are also positions in which a king and a knight can checkmate a king and a bishop, knight, or rook; or a king and a bishop can checkmate a king with a bishop on the other color of squares or with a knight, but the checkmate cannot be forced if there is no other material on the board (see the diagrams for some examples). [53]
A prime example consists of the moves: 1.f3 e5 2.g4 Qh4# Scholar's mate – checkmate achieved by the moves: 1.e4 e5 2.Qh5 Nc6 3.Bc4 Nf6? 4.Qxf7#. The moves might be played in a different order or in slight variation, but the basic idea is the same: the queen and bishop combine in a simple mating attack on f7 (or f2 if Black is performing the ...
For example, White might play 2.Bc4. In all variations, the basic idea is the same: the queen and bishop combine in a simple mating attack, occurring on f7 for White or on f2 for Black. Scholar's mate is sometimes referred to as the four-move checkmate, although there are other ways for checkmate to occur in four moves.
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In contrast to a king and two bishops (on opposite-colored squares), or a bishop and a knight, a king and two knights cannot force checkmate against a lone king (however, the superior side can force stalemate [1] [2]). Although there are checkmate positions, a king and two knights cannot force them against proper, relatively easy defense. [3]
Many variants on the mate are seen, for example a king on e8 checkmated by bishops on g6 and a3, and a king on f1 checkmated by bishops on h3 and b6. Often the mate is immediately preceded by a sacrifice that opens up the diagonal on which the bishop delivers checkmate, and the mate is often a pure mate (as is the case for all but one of the ...