Fork: rook to d3 (d6)
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The tactical motive
Fork: one piece attacks two targets at once — they can't both be saved.
Difficulty 1728 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 e3, rook a1, bishop d3, pawn b2 c2 h2 g3 e4 f4.
Black: king g6, rook d6, knight b4, pawn b5 e5 a6 f6 f7 h7.
9 white and 9 black pieces are on the board; the puzzle position arises after move 24.
The position in numbers
Material is level — 14 points of pieces on each side (pawn = 1, knight and bishop = 3, rook = 5, queen = 9).
The white king stands on e3, the black king on g6.
It is Black to move on move 24, with 21 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 6 pawns, Black 6. Files fully open (no pawns of either colour): d — natural highways for the rooks and queen. Half-open for Black: c, g.
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
24... Rxd3+ 25. cxd3 Nc2+ 26. Kd2 Nxa1
Why it works
- Great move! rook to d3 keeps the pressure (+4.4).
- Well found: knight to c2 (+4.8).
- Strong! knight to a1 is the sharp choice (+4.9).
- You win a piece — the rook.
- If instead cxd3, then Nc2+ and you stay on top.
Move by move
- 24… Rxd3+ — rook to d3 (capture) with check
- 25. cxd3 — pawn to d3 (capture)
- Nc2+ — knight to c2 with check
- 26. Kd2 — king to d2
- Nxa1 — knight to a1 (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.
Endgame tactic
Tactics live in the endgame too — strike while material is scarce.
Tactics do not retire when the queens come off: forks, pins and double attacks live on in the endgame. With so little material left, every tactical loss is almost always decisive. The signs are the usual ones — undefended pieces, king and piece on one line, a pawn about to promote. Even in a "technical" ending, scan for a shot before every move, both yours and your opponent's.
Sacrifice attack
Give up material to unleash a decisive attack.
A sacrificial attack gives up material on purpose to rip the king's shelter open and launch a decisive assault. The sac is sound when you get concrete assets in return: open lines to the king, tempi, pieces ready to pour in. The signs: a poorly sheltered king, your forces aimed at its home, defenders stranded far away. The iron rule is to calculate, not hope — once the material is gone, there is no way back.
Provenance
Derived from the Lichess puzzle database (CC0).
Verified by Stockfish at depth 20+.
Solution forcedness confirmed (verified).
Pack 013
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