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Winning blow: bishop to h5

c9-00793
Shuffle Rating 780Theme: Chess960 twist: use the unusual starting setup of the pieces.
White to move — find the best continuation

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The tactical motive

Chess960 twist: use the unusual starting setup of the pieces.

Winning tactic: there is a move that gains a decisive advantage — find it.

Difficulty 780 ShuffleRating — for beginners taking their first steps in Chess960 tactics.

White to move — find the best continuation

How to recognize this tactic

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.

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.

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 e1, rook d1 g1, bishop e2, knight a1 h1, pawn a2 d2 g2 e3 c4 c5.

Black: king e8, queen h5, rook c6, bishop f5, knight a8 h8, pawn a7 b7 e7 h7.

12 white and 10 black pieces are on the board; the puzzle position arises after move 16.

The position in numbers

Black are ahead by 2 points of material (25 against 27; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.

The white king stands on e1, the black king on e8.

It is White to move on move 16, with 23 legal replies to weigh — only the line that keeps the advantage solves the puzzle.

White keeps 6 pawns, Black 4. Files fully open (no pawns of either colour): f — natural highways for the rooks and queen. Half-open for White: b, h.

The White king has 4 empty squares to step to right now — the fewer they are, the closer a mating net.

Solution & explanation

Main line

16. Bxh5+ Bg6 17. Bf3 Rxc5 18. Nf2

Why it works

  • Great move! bishop to h5 keeps the pressure (+6.3).
  • Spot on — bishop to f3 (+6.1).
  • Precise: knight to f2 is the top choice (+6.0).
  • You win a piece — the queen.
  • If instead Bg6, then Bf3 and you win the queen.

Move by move

  • 16. Bxh5+ — bishop to h5 (capture) with check

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.

About this position

These pieces come from starting position #310.

SP-310 · ThroneScout — A knight starts on the edge (a/h) and the king sits centrally on d or e; the mirror twin stays in this family too.

The king starts on e1, the rooks on d1 and g1, the queen on b1.

The queenside rook already stands on d1, so castling long moves only the king, from e1 to c1.

The bishops stand on c1 and f1; their long diagonals reach h6 and a6 once the d- and e-pawns step aside.

One second-rank pawn starts with no defender at all: h2.

The setup belongs to the ThroneScout family; read right to left it becomes position 358.

The engine's main line opens with c3.

Morozov Balance Index: 14 of 100 — class D — largest edge. Engine evaluation of the starting position: +40 centipawns for White (depth 47, 400 000 000 nodes).

Explore position #310

Provenance

Mined from the project's engine self-play games.

Verified by Stockfish at depth 20+.

Solution forcedness confirmed (verified).

Pack 001 · SP-310

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