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Winning blow: queen to g4

c9-00105
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 d1, queen f3, rook c1 e1, bishop a1 b1, knight e5, pawn a2 d2 e2 h2 b3 c4 f4 h5.

Black: king c8, queen f6, rook d8 e8, bishop b7 b8, knight g4 f8, pawn b6 c6 a7 d7 f7 g7.

15 white and 14 black pieces are on the board; the puzzle position arises after move 11.

The position in numbers

Black are ahead by 1 points of material (36 against 37; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.

The white king stands on d1, the black king on c8.

It is White to move on move 11, with 48 legal replies to weigh — only the line that keeps the advantage solves the puzzle.

White keeps 8 pawns, Black 6. No file is fully open, so the heavy pieces have to be pried in. Half-open for White: g.

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

11. Qxg4 Ne6 12. e3 Qe7 13. Nf3

Why it works

  • Great move! queen to g4 keeps the pressure (+3.1).
  • pawn to e3 develops smoothly.
  • A natural move: knight to f3.
  • You win a piece — the knight.
  • If instead Ne6, then e3 and you win the knight.

Move by move

  • 11. Qxg4 — queen to g4 (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.

Counter-strike

Don't defend — answer the threat with a bigger one.

The counter-strike: instead of defending against the threat, you answer with a bigger threat of your own. While your opponent grabs a pawn, you deliver mate — the arithmetic favors you. Look for a counter when direct defenses fail: do you have a check, an attack on the queen, a mating threat? The beginner's error is meeting every threat with a reflexive defense without checking the counterattacking resources first.

About this position

These pieces come from starting position #944.

SP-944 · ThroneGuard — The king starts in the middle of the back rank, on d or e, and neither knight begins in a corner.

The king starts on d1, the rooks on c1 and e1, the queen on h1.

Castling long simply swaps the two pieces: the king on d1 and the rook on c1 trade places.

A bishop starts in the corner on a1: it has a single diagonal, which the b-pawn unlocks, running out to h8.

One second-rank pawn starts with no defender at all: f2.

The setup belongs to the ThroneGuard family; read right to left it becomes position 15.

The engine's main line opens with g3.

Morozov Balance Index: 6 of 100 — class D — largest edge. Engine evaluation of the starting position: +48 centipawns for White (depth 46, 400 000 000 nodes).

Explore position #944

Provenance

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

Verified by Stockfish at depth 20+.

Solution forcedness confirmed (verified).

Pack 001 · SP-944

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