The Hook Mate: Rook, Knight and Pawn in a Chain
A hook mate is a checkmate by a rook protected by a knight, which is in turn protected by a pawn, with the king's last escape square blocked by one of its own pawns.
The mating picture
Picture a black king on f7 with its own pawn on g7. A white rook checks from f8, right next to the king. The rook is protected by a white knight on g6, and that knight is protected by a white pawn on f5. The chain of protection is what gives the pattern its name: rook, knight and pawn hook together.
Now count the squares. The rook covers e8, g8 and f6. The knight on g6 covers e7 and protects f8. The pawn on f5 covers e6 and protects g6, so the king cannot capture the knight either. The pawn on g7 blocks the last square. Every square is covered, and every attacking piece is protected.
The typical lead-in
The knight and pawn usually arrive first, often as part of a kingside pawn advance. A knight on g6 or e6 supported by a pawn is a powerful outpost even without a mate in sight. Then a rook check on the back rank drives the king forward, and a second rook move delivers the mate from the adjacent square.
The key question is always: which squares is my knight covering? A supported knight near the king often takes away two or three flight squares, and the rook only needs to cover the rest.
Why it gets missed
In endgames with rooks and minor pieces, players tend to think about pawn races and material, not mate. A knight, a rook and an advanced pawn near an exposed king are often enough to mate even with reduced material. The mates you overlook in your own endgames are worth going back to and drilling.
How to spot it
- Look for an exposed king in an endgame with rooks and minor pieces still on the board.
- Check which flight squares your knight already covers.
- Make sure the knight is protected, ideally by a pawn, so the king cannot take it.
- Look for a rook check from the square next to the king, protected by the knight.
- Note any of the king's own pawns that block its last escape square.
Try one
Work it out from the diagram first, then play it on the board or open the solution.
7
3
cExample 1
White to move and mate in two.
Show solution
37.Re8+ Kf7 38.Rf8#
Black threatens to promote on d1, but Re8+ comes first. After Kf7, Rf8# is the hook mate: the rook on f8 is protected by the knight on g6, the knight is protected by the pawn on f5, the knight covers e7, the pawn covers e6, and g7 is blocked by Black's own pawn. If the king goes to h7 instead, Rh8 is mate, again with the rook protected by the knight on g6.
Position from a real game, via the Lichess puzzle database.