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Winning blow: knight to e4 (g3)

Shuffle Rating 920Theme: 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 920 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 g2, queen g6, rook h1, bishop f2, knight g3, pawn a2 e2 b3 f4 g5.

Black: king f8, queen a5, rook a8, bishop e4 b8, knight d2, pawn d4 f6 a7 b7 d7 e7.

10 white and 12 black pieces are on the board; the puzzle position arises after move 27.

The position in numbers

Black are ahead by 4 points of material (25 against 29; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.

The white king stands on g2, the black king on f8.

It is White to move on move 27, with 5 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 5 pawns, Black 6. Files fully open (no pawns of either colour): c, h — natural highways for the rooks and queen. Half-open for White: d.

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

27. Nxe4 Qxg5+ 28. fxg5

Why it works

  • Great move! knight to e4 keeps the pressure (#2).
  • Spot on — pawn to g5 (#3).
  • You win a piece — the queen.
  • If instead Qxg5+, then fxg5 and you win the queen.

Move by move

  • 27. Nxe4 — knight to e4 (capture)
  • Qxg5+ — queen to g5 (capture) with check
  • 28. fxg5 — pawn to g5 (capture)

Types in this puzzle

Winning blow

Find the strike that wins material by force.

A winning blow is a forced material gain that does not fit a single textbook motif. The general tactical recipe applies: spot loose pieces, an awkwardly placed king, overloaded lines. Go through the forcing moves in order of violence — checks, captures, threats — because most combinations start with one of them. Do not judge by feel: calculate the concrete line until the outcome is beyond doubt.

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 #600.

SP-600 · BastionScout — King off-centre on c or f with a knight starting on the rim (a/h).

The king starts on f1, the rooks on a1 and g1, the queen on c1.

Castling short simply swaps the two pieces: the king on f1 and the rook on g1 trade places.

The bishops stand on b1 and e1; their long diagonals reach h7 and a5 once the c- and d-pawns step aside.

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

The setup belongs to the BastionScout family; read right to left it becomes position 269.

The engine's main line opens with Ng3, bringing the knight out to g3.

Morozov Balance Index: 86 of 100 — class A — most balanced. Engine evaluation of the starting position: +15 centipawns for White (depth 49, 400 000 000 nodes).

Explore position #600

Provenance

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

Pack 004 · SP-600

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