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  • Directmate: White moves first and must force mate in a stipulated number of moves, regardless of Black’s defence.
  • Helpmate: Both sides cooperate so that White can mate Black in the specified number of moves. Black usually begins; thus, in a helpmate in 2, the play runs: 1.Black, White; 2.Black, White mates. The standard practice is to write moves in pairs, Black and White together, with White mating on move 2, rather than in the split form “1…Black 2.White”.
  • Selfmate: White moves first and compels Black to deliver mate within a given number of moves, despite Black’s efforts to avoid it. Selfmates share the adversarial nature of directmates, but with reversed aims: White wants to be mated, while Black resists delivering mate.

In a typical solving competition, you can expect to face all three types of problems, alongside studies.


All diagrams you encounter here are shown from White’s perspective, with a1 at the bottom left; coordinates are therefore omitted as redundant.

Since the stipulation already indicates which side is to move, we don’t repeat it each time. Mate in x means White to play and mate in x moves. Similarly, Win or Draw means White to play and win (or draw). Helpmate in x means Black to play and assist White in mating the black king in x moves.

It goes without saying — there are many, many more types of chess compositions. But with a grasp of these few, you’re ready to explore the material on this site. Whenever we introduce a new concept, term, or problem type, rest assured we’ll put it in context and define it clearly. In the meantime, it’s best to steer clear of unnecessary jargon.


We use standard algebraic notation: K, Q, R, B, and N denote the king, queen, rook, bishop, and knight, respectively, unless otherwise stated. The solution (variations and mainlines) is always given in bold, with threats in italics. An exclamation mark (!) beside a move indicates that it is the only move that solves the problem or refutes a try, while a question mark (?) denotes a suboptimal move that fails to fulfil the given task.


Last but not least, a brief note on castling and en passant: in chess composition, castling rights are assumed to be available unless there is clear evidence to the contrary. Thus, if a king and rook stand on their original squares, one may generally assume they have not yet moved, and castling remains possible. For en passant, the convention is the reverse: such a capture is permitted only if it can be demonstrated that the immediately preceding move was a double-step pawn advance.

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