Trap the pawn on g4
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The tactical motive
Trapped piece: an enemy piece has no safe squares — catch it.
Difficulty 1903 ShuffleRating — for advanced tacticians.
White to move — find the best continuation
How to recognize this tactic
A trapped piece has no safe square. Spot an enemy piece that has wandered offside or been hemmed in, then play the move that takes away its last escape and wins it — often a quiet pawn push or a covering minor piece.
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 d1 d2, knight c3 f3, pawn a2 b2 c2 f2 g2 h2 e5.
Black: king e7, rook d8 h8, bishop e6, knight f5, pawn c6 h6 a7 b7 c7 f7 g7.
12 white and 12 black pieces are on the board; the puzzle position arises after move 15.
The position in numbers
Material is level — 23 points of pieces on each side (pawn = 1, knight and bishop = 3, rook = 5, queen = 9).
The white king stands on g1, the black king on e7.
It is White to move on move 15, with 32 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 7 pawns, Black 7. Files fully open (no pawns of either colour): d — natural highways for the rooks and queen.
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
15. g4 Rxd2 16. Rxd2 Nd6 17. exd6+
Why it works
- Great move! pawn to g4 keeps the pressure (+3.8).
- Well found: rook to d2 (+3.9).
- Strong! pawn to d6 is the sharp choice (+3.9).
- You win a piece — the rook.
- If instead Rxd2, then Rxd2 and you stay on top.
Move by move
- 15. g4 — pawn to g4
- Rxd2 — rook to d2 (capture)
- 16. Rxd2 — rook to d2 (capture)
- Nd6 — knight to d6
- 17. exd6+ — pawn to d6 (capture) with check
Types in this puzzle
Overload
One defender guards two things — it cannot do both jobs.
Overloading exploits a defender with two jobs at once — guarding a piece and covering a mating square, for instance. It cannot do both: your first strike forces it to handle one duty and abandon the other. Find the overworked piece by asking what happens to each of its charges if it gets distracted. Then hit one target and collect the other — an overloaded defender only pretends to defend.
Remove the defender
Capture the guard first — then take what it protected.
Removing the defender is the straightforward plan: capture the guard first, then take what it guarded. Unlike deflection, the defender is not lured away — it is traded off or destroyed on the spot. Stare at the target you crave and ask who defends it, and whether that defender can be profitably eaten. Count the whole capture sequence, not just the first move — the trade must pay off at the end.
Quiet move
No check, no capture — yet this modest move decides the game.
A quiet move gives no check and takes nothing — yet it decides the game by creating an unstoppable threat or stealing the king's last square. This is the hardest class of moves: the eye hunts for loud blows while a modest shift does the winning. The clue: every forcing try runs into a defense, so seek the move that strengthens the threat or takes squares away. Train yourself to ask: what if I neither capture nor check, but quietly improve?
Provenance
Derived from the Lichess puzzle database (CC0).
Verified by Stockfish at depth 20+.
Solution forcedness confirmed (verified).
Pack 014
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