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Kill box mate

A kill box mate uses the queen and a rook to fence the king into a small rectangle of squares. One piece gives check, and the two together cover every flight square in the box.

The rook usually cuts the king off along a rank or file, and the queen finishes. Look for a check that shrinks the king's area instead of a check that lets it run.

Source database: 5,440 puzzles with this tag. This trainer: 180.

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Puzzle rating 987 · played 1,811 times in the source set

Find the move.

Solved in a row: 0. The next puzzle stays near rating 1,400.

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By rating band

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beginner1,045 in the source database · 36 on the page easy1,818 in the source database · 36 on the page intermediate1,682 in the source database · 36 on the page hard759 in the source database · 36 on the page expert136 in the source database · 36 on the page