Discovered attack: bishop to h7 (b1)
li-047uPnaming tag (square·N)Opens in the app if installed, otherwise downloads the APK.
The tactical motive
Discovered attack: one piece steps aside, unleashing another's attack.
Difficulty 1591 ShuffleRating — club-player level.
White to move — find the best continuation
How to recognize this tactic
A discovered attack fires when one piece steps aside and unmasks the piece behind it. Look for your own units that block a rook, bishop or queen: moving the front piece — ideally with a threat of its own — springs two attacks in one move.
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 c1, bishop b1, pawn g2 h2 b4.
Black: king g8, rook a1, bishop b3, pawn e6 f6 g7 h7.
6 white and 7 black pieces are on the board; the puzzle position arises after move 35.
The position in numbers
Black are ahead by 1 points of material (11 against 12; 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 35, with 25 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 3 pawns, Black 4. Files fully open (no pawns of either colour): a, c, d — natural highways for the rooks and queen. Half-open for White: e, f.
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
35. Bxh7+ Kxh7 36. Rxa1
Why it works
- Great move! bishop to h7 keeps the pressure (+5.1).
- Well found: rook to a1 (+5.1).
- You win a piece — the rook.
- If instead Kxh7, then Rxa1 and you win the rook.
Move by move
- 35. Bxh7+ — bishop to h7 (capture) with check
- Kxh7 — king to h7 (capture)
- 36. Rxa1 — rook to a1 (capture)
Types in this puzzle
Discovered attack
A piece steps aside and opens a second attack from the piece behind it.
A discovered attack works like a curtain: one piece steps off the line and unveils the long-range piece behind it. The beauty is that the moving piece can create a second threat of its own — two attacks in one move. Look for your stacked pairs: a bishop or rook behind a knight or pawn, aimed through them at something valuable. Send the front piece to the most aggressive square — a discovery without a second threat wastes half its power.
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.
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.
Provenance
Derived from the Lichess puzzle database (CC0).
Verified by Stockfish at depth 20+.
Solution forcedness confirmed (verified).
Pack 011
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