Mate in 2: queen to h6 (h5·4)
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The tactical motive
Mate in 2: the first move creates an unstoppable threat, the second delivers mate.
Difficulty 1948 ShuffleRating — for advanced tacticians.
White to move — find the best continuation
How to recognize this tactic
Mate in two usually opens with a forcing move — a check, a capture or an unstoppable threat — that strips the king of squares or defenders, so the follow-up mate becomes unavoidable. Look for the first move that leaves the opponent only losing replies.
General method: before you move, list the forcing candidates — every check, every capture, every direct threat — and calculate those first. The solution to a tactic is almost always among them.
Position on the board
White: king g1, queen h5, rook a1 f1, knight f5, pawn b2 c2 f2 g2 a3 d3 h3.
Black: king f6, queen d8, rook a8 f8, bishop c5, knight d5, pawn e5 a6 d6 b7 c7 f7.
12 white and 12 black pieces are on the board; the puzzle position arises after move 18.
The position in numbers
Black are ahead by 2 points of material (29 against 31; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on g1, the black king on f6.
It is White to move on move 18, with 39 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 7 pawns, Black 6. No file is fully open, so the heavy pieces have to be pried in. Half-open for White: e.
The White king has 2 empty squares to step to right now — the fewer they are, the closer a mating net.
Solution & explanation
Main line
18. Qh6+ Kxf5 19. g4#
Why it works
- Great move! queen to h6 keeps the pressure (#1).
- Well found: pawn to g4 (#).
- The line ends in a forced mate in 2.
- If instead Kxf5, then g4# and it is mate.
Move by move
- 18. Qh6+ — queen to h6 with check
- Kxf5 — king to f5 (capture)
- 19. g4# — pawn to g4 and it is checkmate
Types in this puzzle
Pawn mate
The humblest soldier delivers the final blow.
The pawn mate lets the humblest soldier land the final blow. It happens to a king stuck among its own and enemy pieces: the pawn strikes diagonally from one square away and there is nowhere left to run. The sign: the squares around the king are covered or occupied, and your pawn stands one step from striking distance. Never write pawns out of your attack — their blows are the cheapest and therefore the most humiliating.
Mate in 2
A forced checkmate in two moves.
Mate in two: your move, any reply, then the mating blow. Start with the most forcing first moves — checks and sacrifices that shrink the opponent's options to almost nothing. Against every single reply you must have a mate ready, so check them all without exception. The common failure is analyzing the pretty defense and forgetting the boring one.
Royal fork
A fork with check: the king must move, and the second piece is lost.
A royal fork is a fork with check — one of the two targets is the king itself. The check must be answered first, so nobody is left to rescue the second piece. Look for squares where your piece gives check and simultaneously attacks an undefended queen or rook. It is the most reliable fork of all, because your opponent literally has no choice.
Provenance
Derived from the Lichess puzzle database (CC0).
Pack 014
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