♚Open in the app

Winning blow: pawn to f3 (g2·19)

Shuffle Rating 1200Theme: Chess960 twist: use the unusual starting setup of the pieces.
White to move — find the best continuation

Solve in the app

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 b7, bishop d2, knight f4, pawn f2 g2 h3 c4 e4 a5.

Black: king h7, rook h6, bishop d8, knight f3 a6, pawn h4 c5 d6 e7 f7 g7.

10 white and 11 black pieces are on the board; the puzzle position arises after move 29.

The position in numbers

Black are ahead by 3 points of material (17 against 20; 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 h7.

It is White to move on move 29, with 3 legal replies to weigh — only the line that keeps the advantage solves the puzzle. White are in check right now, so every reply must answer the check.

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

The White king has 2 empty squares to step to right now — the fewer they are, the closer a mating net.

Solution & explanation

Main line

29. gxf3 Rf6 30. Ra7 Nb4 31. Ra8 Bxa5 32. Rxa5

Why it works

  • Great move! pawn to f3 keeps the pressure (+3.0).
  • rook to a7 develops smoothly.
  • A natural move: rook to a8.
  • Great move! rook to a5 keeps the pressure (+3.1).
  • You win a piece — the bishop.
  • If instead Rf6, then Ra7 and you win the knight.

Move by move

  • 29. gxf3 — pawn to f3 (capture)
  • Rf6 — rook to f6
  • 30. Ra7 — rook to a7
  • Nb4 — knight to b4
  • 31. Ra8 — rook to a8
  • Bxa5 — bishop to a5 (capture)
  • 32. Rxa5 — rook to a5 (capture)

Types in this puzzle

Clearance

Clear your own piece out of the way — with tempo — for the decisive blow.

Clearance is about your own piece standing in the way of the decisive blow — so you move it aside, or even throw it away. The key is to clear with tempo: jump off with a check, a capture or a threat, giving the opponent no time to regroup. The telltale sign: you see a crushing queen or rook move, but one of your own pieces blocks the line or occupies the square. Do not cling to it — a clearance sacrifice usually costs less than a missed attack.

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 #393.

SP-393 · RampartGuard — King pushed to the b- or g-file, knights off the edges — 144 positions here.

The king starts on g1, the rooks on b1 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 d1 and e1; their long diagonals reach h5 and a5 once the e- 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 761.

The engine's main line opens with h4.

Morozov Balance Index: 86 of 100 — class A — most balanced. Engine evaluation of the starting position: +15 centipawns for White (depth 43, 400 000 000 nodes).

Explore position #393

Provenance

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

Pack 008 · SP-393

Similar puzzles

In your browser or in the Android app. Nothing to install · Free, no ads

Embed

Copy this code to embed the board on your site: