Solution patterns

Hoezee

Simple swap

Two solutions are related by a 'simple swap' if all tiles are identical, apart from two tiles forming a rectangle, appearing in reverse order.

Compound swap

Solutions are related by a 'compound swap' if all tiles are identical, apart from two forming a rectangle, which in terms forms a rectangle with a third tile.

Imperfect compound swap

Solutions are related by a 'compound swap' if all tiles are identical, apart from a number of two forming a rectangle, appearing in reverse order.

Hook swap

Partial retiling

Partial Retiling of AS-17 on 22x33