Bishop and knight checkmate

Chess

Force the hardest basic mate.

What coaches agree on

  • Checkmate is only possible in the corner matching your bishop's color (a8 or h1 for a light-squared bishop, a1 or h8 for a dark-squared one), so the entire plan is built around forcing the king there.
  • When the king runs to the wrong-colored corner, walk it to the right one by cycling your knight through the repeating 'W' zigzag pattern while your king and bishop box it in.
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  • Divide the board by square color: since your bishop can only ever guard squares of its own color, use your knight to control the opposite-colored squares it can't reach.

Common mistakes

  • A careless move late in the sequence, often moving the knight when a waiting move with the bishop was needed, can accidentally stalemate the cornered king and turn the win into a draw.