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Winning blow: bishop to g5

c9-05903
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 f1, queen d4, rook h1 e2, bishop b1 h6, knight b3 c3, pawn b2 c2 g2 a4 h4 e5.

Black: king e7, queen f7, rook d8 h8, bishop e6 b8, knight b6, pawn e4 f5 c6 g6 a7 b7 h7.

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

The position in numbers

White are ahead by 2 points of material (37 against 35; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.

The white king stands on f1, the black king on e7.

It is White to move on move 14, with 49 legal replies to weigh — only the line that keeps the advantage solves the puzzle.

White keeps 6 pawns, Black 7. Files fully open (no pawns of either colour): d — natural highways for the rooks and queen. Half-open for White: f.

The White king has 4 empty squares to step to right now — the fewer they are, the closer a mating net.

Solution & explanation

Main line

14. Bg5+ Qf6 15. Bxf6+ Kf7 16. Bxd8

Why it works

  • Great move! bishop to g5 keeps the pressure (+8.3).
  • Well found: bishop to f6 (+8.6).
  • Precise: bishop to d8 is the top choice (+8.9).
  • You win a piece — the queen.
  • If instead Qf6, then Bxf6+ and you win the queen.

Move by move

  • 14. Bg5+ — bishop to g5 with check

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.

About this position

These pieces come from starting position #68.

SP-68 · BastionScout — The king starts one file off-centre, on c or f, and a knight begins in a corner.

The king starts on f1, the rooks on e1 and h1, the queen on g1.

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.

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

Every pawn on the second rank is defended from the very first move.

The setup belongs to the BastionScout family; read right to left it becomes position 894.

The engine's main line opens with f4.

Morozov Balance Index: 61 of 100 — class B — balanced. Engine evaluation of the starting position: +23 centipawns for White (depth 49, 400 000 000 nodes).

Explore position #68

Provenance

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

Verified by Stockfish at depth 20+.

Solution forcedness confirmed (verified).

Pack 002 · SP-68

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