Tactics · Learn
The Kill Box Mate
The kill box is a lethal rook-and-queen pattern: the rook sits three squares from the king and the queen a knight's-move away, forming a 3×3 "box" the king cannot leave. The queen mates, guarded by the rook.
How to spot it: line up a rook and queen so their combined control blankets the king's escape squares: a modern, frequently occurring mating net worth knowing by sight.
How to spot it: line up a rook and queen so their combined control blankets the king's escape squares: a modern, frequently occurring mating net worth knowing by sight.
Now spot it yourself
A real position: find the move. This is exactly what the drills in the app do, banded from beginner to expert.
How this lesson is made: this public explanation comes from the authored Strong Squares curriculum. Automated checks protect its chess data, source fields and learning flow. Independent chess-editor approval remains part of the private-preview release process. Read the teaching method.