Fork: queen to e3 (f3)
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The tactical motive
Fork: one piece attacks two targets at once — they can't both be saved.
Difficulty 2008 ShuffleRating — expert level — few solve it at first try.
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.
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 f3, rook d1, knight f4, pawn a2 g2 h3 b4.
Black: king h7, queen e3, rook c7, bishop d4, pawn f5 b6 g6 h6.
8 white and 8 black pieces are on the board; the puzzle position arises after move 37.
The position in numbers
Material is level — 21 points of pieces on each side (pawn = 1, knight and bishop = 3, rook = 5, queen = 9).
The white king stands on h1, the black king on h7.
It is White to move on move 37, with 34 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 4 pawns, Black 4. Files fully open (no pawns of either colour): c, d, e — natural highways for the rooks and queen. Half-open for White: f.
The White king has 1 empty squares to step to right now — the fewer they are, the closer a mating net.
Solution & explanation
Main line
37. Qxe3 Bxe3 38. Nd5 Rc2 39. Nxe3
Why it works
- Great move! queen to e3 keeps the pressure (+3.9).
- Well found: knight to d5 (+3.8).
- Strong! knight to e3 is the sharp choice (+4.3).
- You win a piece — the queen.
- If instead Bxe3, then Nd5 and you stay on top.
Move by move
- 37. Qxe3 — queen to e3 (capture)
- Bxe3 — bishop to e3 (capture)
- 38. Nd5 — knight to d5
- Rc2 — rook to c2
- 39. Nxe3 — knight to e3 (capture)
Types in this puzzle
Knight fork
One knight move attacks two targets at once — the opponent can only save one.
A fork is one move that attacks two targets at once, and no piece forks better than the knight. Look through the knight's eyes: it jumps in an L and never moves along straight lines, which is exactly why its threats get missed. Both victims of a knight fork always stand on squares of one color, while the knight strikes from the opposite color. Hunt for the square from which the knight hits the king and a heavy piece at once.
Simplification
Trade the heavy pieces and steer into a won endgame.
Simplification is how you convert an advantage: by trading queens and rooks you extinguish the counterplay and steer the game into a won endgame. The rule is simple — the side with extra material trades pieces but keeps pawns. Look for exchanges once the material is already won and your opponent is still rattling threats. The mistake is avoiding the queen trade and letting him muddy the water forever.
Winning exchange
A forced series of captures on one square ends in your favour.
A winning exchange is a forced series of captures on one square that leaves you ahead in material. It is pure arithmetic: count the attackers and defenders of the square and note the value of every piece in the queue. Capture in the right order — cheap pieces first, expensive ones later — or a winning trade turns into a losing one. The classic error is stopping the count halfway and missing the opponent's final recapture.
Provenance
Derived from the Lichess puzzle database (CC0).
Verified by Stockfish at depth 20+.
Solution forcedness confirmed (verified).
Pack 014
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