
Chess compositions are artificial chess positions created by composers to showcase creative logic, paradoxes, or aesthetic beauty rather than to reflect a natural game state. They present a specific task, such as “White to play and mate in two,” and act as a competition of wits between the composer and the solver. Compositions fundamentally differ from over-the-board play, as they are deliberately designed with thematic “rules” rather than emerging from a standard competitive struggle.
Each complete solution carries 5 points. Solutions must be written in classical, abbreviated algebraic notation. Participants are allowed to move pieces on the board while solving.
The Grand Prix competitions follow the WCSC/ECSC rules.
6 rounds over two days, with 3 rounds each day
according to the following table ->
| Round | Problems (3 per round) | Solving time |
|---|---|---|
| 1 | twomovers | 20 minutes |
| 2 | threemovers | 60 minutes |
| 3 | endgames | 100 minutes |
| 4 | helpmates (h#2, h#3, h# >3) | 50 minutes |
| 5 | moremovers (at least one 4# and one >4#) | 80 minutes |
| 6 | selfmates (s#2, s#3, s# >3) | 50 minutes |