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Winning blow: pawn to h6 (h5)

Shuffle Rating 1200Theme: 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 1200 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 g1, rook h1 e8, bishop b1 c1, knight f2 g3, pawn a2 d2 g2 f3 c4 h5.

Black: king g7, queen a8, rook h8, bishop b7 b8, knight d7 d8, pawn d4 g6 a7 f7 h7.

13 white and 12 black pieces are on the board; the puzzle position arises after move 13.

The position in numbers

Black are ahead by 3 points of material (28 against 31; 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 g7.

It is White to move on move 13, with 40 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): b, e — natural highways for the rooks and queen.

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

13. h6+ Kf6 14. Nge4+ Bxe4 15. Nxe4+ Qxe4 16. Rxe4

Why it works

  • Great move! pawn to h6 keeps the pressure (+3.0).
  • Spot on — knight to e4 (+3.2).
  • Strong! knight to e4 is the sharp choice (+3.0).
  • Great move! rook to e4 keeps the pressure (+3.2).
  • You win a piece — the queen.
  • If instead Kf6, then Nge4+ and you stay on top.

Move by move

  • 13. h6+ — pawn to h6 with check
  • Kf6 — king to f6
  • 14. Nge4+ — knight to e4 with check
  • Bxe4 — bishop to e4 (capture)
  • 15. Nxe4+ — knight to e4 (capture) with check
  • Qxe4 — queen to e4 (capture)
  • 16. Rxe4 — rook to e4 (capture)

Types in this puzzle

Winning exchange

A forced series of captures on one square ends in your favour.

A winning exchange is a forced series of captures on one square that leaves you ahead in material. It is pure arithmetic: count the attackers and defenders of the square and note the value of every piece in the queue. Capture in the right order — cheap pieces first, expensive ones later — or a winning trade turns into a losing one. The classic error is stopping the count halfway and missing the opponent's final recapture.

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 #100.

SP-100 · RampartGuard — Both knights begin on inner files while the king sits on the wing (b/g); mirror twins stay together in this family.

The king starts on g1, the rooks on e1 and h1, the queen on a1.

The king already stands on its castled square, so castling short moves only the rook, from h1 to f1.

The bishops stand on b1 and c1; their long diagonals reach h7 and h6 once the c- and d-pawns step aside.

The pawn on g2 is defended by the king alone — the same soft spot f2 is in the classical setup.

The setup belongs to the RampartGuard family; read right to left it becomes position 862.

The engine's main line opens with e4, putting a pawn straight into the centre.

Morozov Balance Index: 11 of 100 — class D — largest edge. Engine evaluation of the starting position: +42 centipawns for White (depth 46, 400 000 000 nodes).

Explore position #100

Provenance

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

Pack 008 · SP-100

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