Trap the rook on a1 (c1)
li-0B08jnaming tag (square·N)Opens in the app if installed, otherwise downloads the APK.
The tactical motive
Trapped piece: an enemy piece has no safe squares — catch it.
Difficulty 1966 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, queen c2, rook c1 e1, knight d6, pawn b2 g2 h2 f4 e5.
Black: king g8, queen a2, rook g6 a8, knight d5, pawn c6 h6 a7 b7 f7 g7.
10 white and 11 black pieces are on the board; the puzzle position arises after move 22.
The position in numbers
Black are ahead by 1 points of material (27 against 28; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on g1, the black king on g8.
It is White to move on move 22, with 42 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 5 pawns, Black 6. Files fully open (no pawns of either colour): d — natural highways for the rooks and queen. Half-open for White: a, c.
The White king has 3 empty squares to step to right now — the fewer they are, the closer a mating net.
Solution & explanation
Main line
22. Ra1 Qxa1 23. Rxa1
Why it works
- Great move! rook to a1 keeps the pressure (+4.6).
- Well found: rook to a1 (+4.5).
- You win a piece — the queen.
- If instead Qxa1, then Rxa1 and you win the queen.
Move by move
- 22. Ra1 — rook to a1
- Qxa1 — queen to a1 (capture)
- 23. Rxa1 — rook to a1 (capture)
Types in this puzzle
Clearance
Clear your own piece out of the way — with tempo — for the decisive blow.
Clearance is about your own piece standing in the way of the decisive blow — so you move it aside, or even throw it away. The key is to clear with tempo: jump off with a check, a capture or a threat, giving the opponent no time to regroup. The telltale sign: you see a crushing queen or rook move, but one of your own pieces blocks the line or occupies the square. Do not cling to it — a clearance sacrifice usually costs less than a missed attack.
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
Similar puzzles
In your browser or in the Android app. Nothing to install · Free, no ads