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Chess problems

Intermediate · 12 min

Three mates in two, each with one key: a quiet move, a waiting move and a try.

Play it without an account

Chess problems: Mate in two: one quiet key, a threat, and a try that fails.

The idea

Mate in two: one quiet key, a threat, and a try that fails.

  1. A queen on g2 would be taken by the pawn on h3.
  2. From g1 the queen aims at g7, which the king on f6 guards.
  3. If Black’s king steps to h6, the queen mates on g6 instead.

In a game: In a mate in two, try quiet moves that set up a threat, not only checks.

How the lesson begins

A chess problem is a position made up by a composer, with a task for the solver. In the problems here White moves first, and White’s second move must mate, whatever Black plays. The position does not come from a game; it only has to be one that a legal game could reach.

The first move of the solution is the key. In a good problem there is only one key, and it is often a quiet move, not a check or a capture. Sam Loyd (1841–1911), an American, was one of the best-known composers of problems and puzzles.

The three problems below were found by computer search for this lesson, not by a named composer.

Chess problems, step 1: White to move
White to move

Find the move

White to move and mate in two. Find the key.

Chess problems, step 2: White to move. Find the move.
White to move
A hint

Put the queen on the g-file, where the pawn on h3 cannot take it.

Show the answer

1. Qg1 Kh8 2. Qg7#

1.Qg1! The queen aims at g7, which your king on f6 guards, and 2.Qg7# is threatened. Whatever Black plays, a mate follows.

Play it on the board

In GreyChess the lesson is played on a live board: your answers are judged as you move, and the positions to remember become flashcards.

Continue the lesson free