♚Open in the app

Attack on the uncastled king: bishop to h5 (e2·8)

Shuffle Rating 1760Theme: 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.

Mate in 3: a forced sequence that ends in checkmate.

Uncastled king: the enemy king is stuck in the centre — punish it before it castles.

Difficulty 1760 ShuffleRating — for advanced tacticians.

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.

In a mate in three every move must be forcing; the defender should never get a free tempo. Find the check or threat that herds the king, calculate the single defence to each, and confirm the net closes on the third move.

An uncastled king in the centre is a standing target. Look for ways to open the central files and diagonals against it with checks and threats before it can shelter — every tempo the king spends in the middle is a chance for a combination.

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 e1, queen h7, rook d2 g2, bishop c1 e2, knight c3 g3, pawn a2 b2 f2 h2 d4 f4.

Black: king e8, queen a8, rook d8 h8, bishop d6, knight b8, pawn b5 e6 a7 c7 d7 g7.

14 white and 12 black pieces are on the board; the puzzle position arises after move 14.

The position in numbers

White are ahead by 6 points of material (37 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 e1, the black king on e8.

It is White to move on move 14, with 47 legal replies to weigh — only the line that keeps the advantage solves the puzzle.

White keeps 6 pawns, Black 6. No file is fully open, so the heavy pieces have to be pried in. Half-open for White: c, e, g.

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

14. Bh5+ g6 15. Qxg6+ Kf8 16. Qf7#

Why it works

  • Best move. bishop to h5 is exactly what the engine plays (#2).
  • Spot on — queen to g6 (#1).
  • Precise: queen to f7 is the top choice (#).
  • The line ends in a forced mate in 3.
  • If instead g6, then Qxg6+ and you stay on top.

Move by move

  • 14. Bh5+ — bishop to h5 with check
  • g6 — pawn to g6
  • 15. Qxg6+ — queen to g6 (capture) with check
  • Kf8 — king to f8
  • 16. Qf7# — queen to f7 and it is checkmate

Types in this puzzle

Ladder mate

Two heavy pieces climb line by line, cutting off every retreat.

The ladder mate uses two heavy pieces climbing rung by rung: one cuts the king off along a line, the other checks on the next line, driving him toward the edge. It is the classic two-rook technique — check, the king retreats one rank, the other rook checks, until mate on the last rank. The only danger is the king creeping close enough to attack one of your rooks. If it does, simply slide that rook to the far side of the same line.

Mate in 3

A forced checkmate in three moves.

Mate in three is a forced staircase: each of your moves narrows the opponent's choices, and the third one ends the game. Look for the start among checks and sacrifices — quiet first moves are rare in mating problems, but deliciously sneaky. Keep the tree in your head: every defense gets its own branch. Do not stop calculating after move two — see the final mating picture with your own eyes.

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 #294.

SP-294 · ThroneScout — King on a central file (d/e) with a knight starting on the rim (a/h).

The king starts on e1, the rooks on d1 and g1, the queen on a1.

The queenside rook already stands on d1, so castling long moves only the king, from e1 to c1.

The bishops stand on c1 and f1; their long diagonals reach h6 and a6 once the d- and e-pawns step aside.

The second rank carries 2 pawns with no defender at all: c2, h2.

The setup belongs to the ThroneScout family; read right to left it becomes position 374.

The engine's main line opens with c4.

Morozov Balance Index: 24 of 100 — class D — largest edge. Engine evaluation of the starting position: +35 centipawns for White (depth 46, 400 000 000 nodes).

Explore position #294

Provenance

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

Verified by Stockfish at depth 20+.

Solution forcedness confirmed (verified).

Pack 013 · SP-294

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: