Fork: rook to c3 (h3)
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The tactical motive
Fork: one piece attacks two targets at once — they can't both be saved.
Difficulty 1807 ShuffleRating — for advanced tacticians.
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 c1, queen d6.
Black: king a3, rook h3, knight b4, pawn a4.
2 white and 4 black pieces are on the board; the puzzle position arises after move 83.
The position in numbers
Material is level — 9 points of pieces on each side (pawn = 1, knight and bishop = 3, rook = 5, queen = 9).
The white king stands on c1, the black king on a3.
It is Black to move on move 83, with 15 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 0 pawns, Black 1. Files fully open (no pawns of either colour): b, c, d, e, f, g, h — natural highways for the rooks and queen.
The Black king has 2 empty squares to step to right now — the fewer they are, the closer a mating net.
Solution & explanation
Main line
83... Rc3+ 84. Kd2 Rd3+ 85. Qxd3+ Nxd3
Why it works
- Great move! rook to c3 keeps the pressure (+5.2).
- Well found: rook to d3 (+5.7).
- Strong! knight to d3 is the sharp choice (+10.2).
- You win a piece — the queen.
- If instead Kd2, then Rd3+ and you stay on top.
Move by move
- 83… Rc3+ — rook to c3 with check
- 84. Kd2 — king to d2
- Rd3+ — rook to d3 with check
- 85. Qxd3+ — queen to d3 (capture) with check
- Nxd3 — knight to d3 (capture)
Types in this puzzle
Winning blow
Find the strike that wins material by force.
A winning blow is a forced material gain that does not fit a single textbook motif. The general tactical recipe applies: spot loose pieces, an awkwardly placed king, overloaded lines. Go through the forcing moves in order of violence — checks, captures, threats — because most combinations start with one of them. Do not judge by feel: calculate the concrete line until the outcome is beyond doubt.
Queen endgame
Queens on an open board — precision above all.
Queen endgames are treacherous: the queen reaches everywhere, and one slip turns a win into perpetual check. The signs are few pawns, exposed kings, and checks hanging in the air. Tuck your king away early, and use your own checks to bring the queen closer or push your passer with tempo. The typical mistake is grabbing pawns while leaving your king exposed to endless checks.
Provenance
Derived from the Lichess puzzle database (CC0).
Pack 013
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