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Winning blow: queen to e6 (h3·6)

Shuffle Rating 1510Theme: 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 1510 ShuffleRating — club-player level.

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 h3, rook a1, bishop b2, knight d2 f4, pawn c2 f2 b3 d3 a4.

Black: king d7, rook a6 c8, bishop c7 a8, knight b4, pawn c5 d6 e6 g6 a7 b7.

11 white and 12 black pieces are on the board; the puzzle position arises after move 24.

The position in numbers

White are ahead by 3 points of material (28 against 25; 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 d7.

It is White to move on move 24, with 46 legal replies to weigh — only the line that keeps the advantage solves the puzzle.

White keeps 5 pawns, Black 6. Files fully open (no pawns of either colour): h — natural highways for the rooks and queen. Half-open for White: e, g.

Black hold the bishop pair, an edge in open lines. 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

24. Qxe6+ Kc6 25. Qxc8 Ra5 26. c3

Why it works

  • Great move! queen to e6 keeps the pressure (#6).
  • Spot on — queen to c8 (#5).
  • A natural move: pawn to c3.
  • You win a piece — the rook.
  • If instead Kc6, then Qxc8 and you win the rook.

Move by move

  • 24. Qxe6+ — queen to e6 (capture) with check

Types in this puzzle

Win the pinned piece

The pinned piece cannot run — attack it again and win it.

A pinned piece cannot flee, which means you can win it outright by attacking it one more time. Count attackers against defenders: if you outnumber them, the piece is yours. The best extra attacker is a pawn, since it costs less than anything it might capture. Do not rush the capture — build up the pressure first, then harvest.

About this position

These pieces come from starting position #241.

SP-241 · ThroneGuard — A central king (d or e) and two knights tucked onto inner files: the family that holds the standard array, SP-518.

The king starts on e1, the rooks on c1 and h1, the queen on f1.

Castling ends where it always does: king to g1 and rook to f1 on the short side, king to c1 and rook to d1 on the long one.

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: a2.

The setup belongs to the ThroneGuard family; read right to left it becomes position 619.

The engine's main line opens with b3.

Morozov Balance Index: 65 of 100 — class B — balanced. Engine evaluation of the starting position: +22 centipawns for White (depth 45, 400 000 000 nodes).

Explore position #241

Provenance

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

Pack 011 · SP-241

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