Mate in 3: deflection on e6
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The tactical motive
Deflection: force the defender to abandon its post.
Mate in 3: a forced sequence that ends in checkmate.
Difficulty 1993 ShuffleRating — for advanced tacticians.
White to move — find the best continuation
How to recognize this tactic
Deflection drags a defender away from its duty. Identify the enemy piece that guards a key square or mate, then force it to move — with a check, a capture or a threat it must answer — and strike where it no longer defends.
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.
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 d1, queen e4, bishop c4, pawn c2 g2 f5.
Black: king g8, queen d8, rook b8, bishop c3, pawn a4 c5 a6 d6 e6 h6.
6 white and 10 black pieces are on the board; the puzzle position arises after move 29.
The position in numbers
Black are ahead by 8 points of material (15 against 23; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on d1, the black king on g8.
It is White to move on move 29, with 30 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 3 pawns, Black 6. Files fully open (no pawns of either colour): b — natural highways for the rooks and queen. Half-open for White: a, d, e, h.
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. Qxe6+ Kg7 30. Qg6+ Kh8 31. Qxh6#
Why it works
- Great move! queen to e6 keeps the pressure (#2).
- Well found: queen to g6 (#1).
- Strong! queen to h6 is the sharp choice (#).
- The line ends in a forced mate in 3.
- If instead Kg7, then Qg6+ and you stay on top.
Move by move
- 29. Qxe6+ — queen to e6 (capture) with check
- Kg7 — king to g7
- 30. Qg6+ — queen to g6 with check
- Kh8 — king to h8
- 31. Qxh6# — queen to h6 (capture) and it is checkmate
Types in this puzzle
Corner mate
Driven into the corner, the king runs out of squares.
The corner mate catches a king driven into the corner, where it has only three neighboring squares — all of them taken away or blocked. The corner is the worst home for a king, because the attacker needs to control the fewest squares there. Herd the king toward the corner with checks and never let it slip back toward the center. Cut off the escape routes before the final check, and the mate practically assembles itself.
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.
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.
Provenance
Derived from the Lichess puzzle database (CC0).
Verified by Stockfish at depth 20+.
Solution forcedness confirmed (verified).
Pack 014
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