Winning blow: bishop to d4 (f2·2)
sf-t-0021naming tag (square·N)Opens in the app if installed, otherwise downloads the APK.
The tactical motive
Winning tactic: there is a move that gains a decisive advantage — find it.
Chess960 twist: use the unusual starting setup of the pieces.
Difficulty 780 ShuffleRating — for beginners taking their first steps in Chess960 tactics.
White to move — find the best continuation
How to recognize this tactic
This position hides a concrete tactic that wins material or mates. Start with the most forcing candidate moves — checks, captures and threats — and calculate each to a clear end before choosing; the winning line is usually the one the opponent cannot meet.
In Chess960 the pieces start on unfamiliar squares, so tactics appear earlier and from unusual angles. Do not trust classical patterns — read the actual lines of the bishops, the rooks and the queen from where they really stand in this position.
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 c1, rook a3, bishop d1 f2, knight c3 e4, pawn b2 c2 d2 h2 a4 h6.
Black: king c8, queen d4, rook b6, bishop d8 e8, knight f7, pawn a5 b7 c7 d7 e7.
12 white and 11 black pieces are on the board; the puzzle position arises after move 19.
The position in numbers
Black are ahead by 5 points of material (23 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 c1, the black king on c8.
It is White to move on move 19, with 30 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): f, g — natural highways for the rooks and queen. Half-open for White: e.
The White king has 1 empty squares to step to right now — the fewer they are, the closer a mating net.
Solution & explanation
Main line
19. Bxd4 Rxh6 20. Bg1 Rh4 21. Nf2
Why it works
- Great move! bishop to d4 keeps the pressure (+3.9).
- bishop to g1 develops smoothly.
- A natural move: knight to f2.
- You win a piece — the queen.
- If instead Rxh6, then Bg1 and you win the queen.
Move by move
- 19. Bxd4 — bishop to d4 (capture)
Types in this puzzle
Hanging piece
A piece is left without protection — just take it.
A hanging piece is simply an unprotected piece you can take for free. It sounds primitive, yet most amateur games are decided exactly this way. Build the habit: before every move, sweep the board and note every undefended piece, yours and theirs. The classic mistake is hunting for a brilliant combination when all you need to do is bend down and pick up the gift.
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.
Provenance
Mined from the project's engine self-play games.
Verified by Stockfish at depth 20+.
Solution forcedness confirmed (verified).
Pack 003
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