Skewer: bishop to f4
li-04mzKOpens in the app if installed, otherwise downloads the APK.
The tactical motive
Skewer: a valuable piece is forced to move, exposing the one behind it.
Difficulty 914 ShuffleRating — for beginners taking their first steps in Chess960 tactics.
Black to move — find the best continuation
How to recognize this tactic
A skewer is a pin reversed — the valuable piece stands in front and, when it moves, the piece behind falls. Line your rook, bishop or queen up against the king or queen and win whatever is hiding behind it.
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, bishop c1, pawn a3 h3 b4 e4 g4 d5.
Black: king d6, bishop e5, pawn b5 g5 a6 f6 h6.
8 white and 7 black pieces are on the board; the puzzle position arises after move 50.
The position in numbers
White are ahead by 1 points of material (9 against 8; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on e3, the black king on d6.
It is Black to move on move 50, with 13 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 6 pawns, Black 5. Files fully open (no pawns of either colour): c — natural highways for the rooks and queen. Half-open for Black: d, e.
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
50... Bf4+ 51. Kd3 Bxc1
Why it works
- Great move! bishop to f4 keeps the pressure (+6.0).
- Well found: bishop to c1 (+6.2).
- You win a piece — the bishop.
- If instead Kd3, then Bxc1 and you win the bishop.
Move by move
- 50… Bf4+ — bishop to f4 with check
- 51. Kd3 — king to d3
- Bxc1 — bishop to c1 (capture)
Types in this puzzle
Skewer
A line attack forces the valuable piece to move, exposing the one behind it.
A skewer is a pin turned inside out: the valuable piece stands in front and something cheaper hides behind it. The big piece must step aside, and you collect the one that was sheltering in its shadow. Scan for the enemy king or queen sharing a file, rank or diagonal with another enemy piece. The deadliest version comes with check — the king moves, the rook behind it dies.
Only move
Everything else loses — find the only move that holds.
An only move is a position where everything loses except one single continuation. You cannot play "by hand" here: run through fundamentally different defenses — run away, block, trade, counterattack — and discard the ones that fail. The hallmark of these puzzles is that the obvious moves lose quickly while the solution often looks strange. First understand exactly what the threat is — then the one saving move reveals itself.
Minor-piece endgame
Bishops and knights duel — geometry decides.
A minor-piece endgame leaves only bishops and knights with pawns, and geometry decides. The bishop loves an open board and play on both wings; the knight loves fixed pawns and outpost squares. Check which color squares the pawns stand on and where the knight can actually reach in time. Practical tip: against a knight, spread the play across both flanks — short legs cannot cover everything.
Provenance
Derived from the Lichess puzzle database (CC0).
Verified by Stockfish at depth 20+.
Solution forcedness confirmed (verified).
Pack 004
Similar puzzles
In your browser or in the Android app. Nothing to install · Free, no ads