Mate in 2: fork on f7 (e5)
li-05qganaming tag (square·N)Opens in the app if installed, otherwise downloads the APK.
The tactical motive
Fork: one piece attacks two targets at once — they can't both be saved.
Mate in 2: the first move creates an unstoppable threat, the second delivers mate.
Difficulty 1571 ShuffleRating — club-player level.
White to move — find the best continuation
How to recognize this tactic
A fork is one piece attacking two targets at once. Look for a knight, pawn or queen move that lands where it hits the king (or a bigger piece) and a second undefended unit on the same turn — the opponent can save only one.
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, rook e1, bishop d6, knight e5, pawn a2 f2 g2 h2 d4.
Black: king d8, rook a8 h8, bishop c8, knight a5, pawn c6 a7 b7 g7 h7.
9 white and 10 black pieces are on the board; the puzzle position arises after move 19.
The position in numbers
Black are ahead by 5 points of material (16 against 21; 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 d8.
It is White to move on move 19, with 34 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 5 pawns, Black 5. Files fully open (no pawns of either colour): e — natural highways for the rooks and queen. Half-open for White: b, c.
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
19. Nf7+ Kd7 20. Re7#
Why it works
- Great move! knight to f7 keeps the pressure (#1).
- Well found: rook to e7 (#).
- The line ends in a forced mate in 2.
- If instead Kd7, then Re7# and it is mate.
Move by move
- 19. Nf7+ — knight to f7 with check
- Kd7 — king to d7
- 20. Re7# — rook to e7 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