Mate in 2: queen to c1 (f4·2)
li-07Sfznaming tag (square·N)Opens in the app if installed, otherwise downloads the APK.
The tactical motive
Mate in 2: the first move creates an unstoppable threat, the second delivers mate.
Difficulty 1486 ShuffleRating — club-player level.
Black 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 g3, rook c1 b7, bishop h1 b2, pawn f2 h2 g4 b5.
Black: king g8, queen f4, rook e8, bishop g7, knight h4, pawn d4 d6 g6 h6 a7 f7.
10 white and 11 black pieces are on the board; the puzzle position arises after move 27.
The position in numbers
White are ahead by 3 points of material (29 against 26; 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 g8.
It is Black to move on move 27, with 42 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 4 pawns, Black 6. Files fully open (no pawns of either colour): c, e — natural highways for the rooks and queen. Half-open for Black: b.
White hold the bishop pair, an edge in open lines. The Black king has 3 empty squares to step to right now — the fewer they are, the closer a mating net.
Solution & explanation
Main line
27... Qxc1+ 28. Bxc1 Re1#
Why it works
- Great move! queen to c1 keeps the pressure (#1).
- Well found: rook to e1 (#).
- The line ends in a forced mate in 2.
- If instead Bxc1, then Re1# and it is mate.
Move by move
- 27… Qxc1+ — queen to c1 (capture) with check
- 28. Bxc1 — bishop to c1 (capture)
- Re1# — rook to e1 and it is checkmate
Types in this puzzle
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.
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.
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).
Verified by Stockfish at depth 20+.
Solution forcedness confirmed (verified).
Pack 011
Similar puzzles
In your browser or in the Android app. Nothing to install · Free, no ads