Mate in 2: rook to e1 (e6·2)
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The tactical motive
Mate in 2: the first move creates an unstoppable threat, the second delivers mate.
Difficulty 850 ShuffleRating — for beginners taking their first steps in Chess960 tactics.
Black to move — find the best continuation
How to recognize this tactic
Mate in two usually opens with a forcing move — a check, a capture or an unstoppable threat — that strips the king of squares or defenders, so the follow-up mate becomes unavoidable. Look for the first move that leaves the opponent only losing replies.
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, queen f3, rook c1 c3, pawn f2 g2 h3 d4 b5.
Black: king g8, queen d6, rook e6 e8, pawn c6 h6 b7 f7 g7.
9 white and 9 black pieces are on the board; the puzzle position arises after move 25.
The position in numbers
Material is level — 24 points of pieces on each side (pawn = 1, knight and bishop = 3, rook = 5, queen = 9).
The white king stands on g1, the black king on g8.
It is Black to move on move 25, with 40 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 5 pawns, Black 5. Files fully open (no pawns of either colour): a, e — natural highways for the rooks and queen. Half-open for Black: d.
The Black king has 3 empty squares to step to right now — the fewer they are, the closer a mating net.
Solution & explanation
Main line
25... Re1+ 26. Rxe1 Rxe1#
Why it works
- Great move! rook to e1 keeps the pressure (#1).
- Well found: rook to e1 (#).
- The line ends in a forced mate in 2.
- If instead Rxe1, then Rxe1# and it is mate.
Move by move
- 25… Re1+ — rook to e1 with check
- 26. Rxe1 — rook to e1 (capture)
- Rxe1# — rook to e1 (capture) and it is checkmate
Types in this puzzle
Mate in 2
A forced checkmate in two moves.
Mate in two: your move, any reply, then the mating blow. Start with the most forcing first moves — checks and sacrifices that shrink the opponent's options to almost nothing. Against every single reply you must have a mate ready, so check them all without exception. The common failure is analyzing the pretty defense and forgetting the boring one.
Royal fork
A fork with check: the king must move, and the second piece is lost.
A royal fork is a fork with check — one of the two targets is the king itself. The check must be answered first, so nobody is left to rescue the second piece. Look for squares where your piece gives check and simultaneously attacks an undefended queen or rook. It is the most reliable fork of all, because your opponent literally has no choice.
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.
Provenance
Derived from the Lichess puzzle database (CC0).
Verified by Stockfish at depth 20+.
Solution forcedness confirmed (verified).
Pack 004
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