Printed puzzles and gamebooks: pencil puzzles, newspaper and magazine puzzle columns, and choose-your-path books. Secondary: used for provenance and cross-medium comparison, never as an entry’s only medium.
2 mechanics appear in this medium with at least one cited example.
Constraint Logic Puzzles
A grid or arrangement must be filled so that every stated rule holds at once, such as no repeated symbol in a row, and the unique solution is reached by eliminating what the constraints forbid rather than by searching hidden state.
Multiple Endings
A bounded story has several authored conclusions, and which one a player reaches is decided by accumulated choices, tracked flags, or a final decision, so the ending is a readable record of the path taken.