Mate in 3: queen to h2 (c7)
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The tactical motive
Mate in 3: a forced sequence that ends in checkmate.
Difficulty 2175 ShuffleRating — expert level — few solve it at first try.
Black to move — find the best continuation
How to recognize this tactic
In a mate in three every move must be forcing; the defender should never get a free tempo. Find the check or threat that herds the king, calculate the single defence to each, and confirm the net closes on the third move.
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 d1, rook a1 f5, bishop b4, knight d4, pawn a2 e4.
Black: king h7, queen c7, rook g4 g8, pawn g2 a7 b7 f7.
8 white and 8 black pieces are on the board; the puzzle position arises after move 30.
The position in numbers
White are ahead by 4 points of material (27 against 23; 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 h7.
It is Black to move on move 30, with 44 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 2 pawns, Black 4. Files fully open (no pawns of either colour): c, d, h — natural highways for the rooks and queen. Half-open for Black: e.
The Black king has 4 empty squares to step to right now — the fewer they are, the closer a mating net.
Solution & explanation
Main line
30... Qh2+ 31. Kxh2 g1=Q+ 32. Qxg1 Rh4#
Why it works
- Great move! queen to h2 keeps the pressure (#2).
- Well found: pawn to g1 (#1).
- Strong! rook to h4 is the sharp choice (#).
- The line ends in a forced mate in 3.
- If instead Kxh2, then g1=Q+ and you stay on top.
Move by move
- 30… Qh2+ — queen to h2 with check
- 31. Kxh2 — king to h2 (capture)
- g1=Q+ — pawn to g1 with check
- 32. Qxg1 — queen to g1 (capture)
- Rh4# — rook to h4 and it is checkmate
Types in this puzzle
Ladder mate
Two heavy pieces climb line by line, cutting off every retreat.
The ladder mate uses two heavy pieces climbing rung by rung: one cuts the king off along a line, the other checks on the next line, driving him toward the edge. It is the classic two-rook technique — check, the king retreats one rank, the other rook checks, until mate on the last rank. The only danger is the king creeping close enough to attack one of your rooks. If it does, simply slide that rook to the far side of the same line.
Only move
Everything else loses — find the only move that holds.
An only move is a position where everything loses except one single continuation. You cannot play "by hand" here: run through fundamentally different defenses — run away, block, trade, counterattack — and discard the ones that fail. The hallmark of these puzzles is that the obvious moves lose quickly while the solution often looks strange. First understand exactly what the threat is — then the one saving move reveals itself.
Mate in 3
A forced checkmate in three moves.
Mate in three is a forced staircase: each of your moves narrows the opponent's choices, and the third one ends the game. Look for the start among checks and sacrifices — quiet first moves are rare in mating problems, but deliciously sneaky. Keep the tree in your head: every defense gets its own branch. Do not stop calculating after move two — see the final mating picture with your own eyes.
Provenance
Derived from the Lichess puzzle database (CC0).
Pack 015
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