Fork: queen to f3
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The tactical motive
Fork: one piece attacks two targets at once — they can't both be saved.
Difficulty 902 ShuffleRating — for beginners taking their first steps in Chess960 tactics.
Black 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.
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 h1, queen h4, rook b1 g1, bishop f5, pawn a2 c2 f2 h2 f3.
Black: king g8, queen c3, rook b8 f8, pawn d5 h5 g6 a7 b7 c7 f7.
10 white and 11 black pieces are on the board; the puzzle position arises after move 20.
The position in numbers
White are ahead by 1 points of material (27 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 h1, the black king on g8.
It is Black to move on move 20, with 39 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 5 pawns, Black 7. Files fully open (no pawns of either colour): e — natural highways for the rooks and queen.
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
20... Qxf3+ 21. Rg2 Qxf5
Why it works
- Great move! queen to f3 keeps the pressure (+4.2).
- Well found: queen to f5 (+4.4).
- You win a piece — the bishop.
- If instead Rg2, then Qxf5 and you win the bishop.
Move by move
- 20… Qxf3+ — queen to f3 (capture) with check
- 21. Rg2 — rook to g2
- Qxf5 — queen to f5 (capture)
Types in this puzzle
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.
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.
Provenance
Derived from the Lichess puzzle database (CC0).
Verified by Stockfish at depth 20+.
Solution forcedness confirmed (verified).
Pack 004
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