No room! No room!they cried out when they saw Alice coming.
The exclusion problem is to remove as few cells as possible from a given region of the grid so as to exclude a given polyform. Equalization problems involve equalizing the distribution of cells within a region. The variegation problem is to color the cells of the grid with as few colors as possible so that a given polyform, no matter where it lies on the grid, has cells of all different colors. Integration means joining copies of a weakly joined polyform to make a strongly joined polyform.
Hexomino Exclusion. Exclude a hexomino from a checkerboard. | |
Polyking Exclusion. Exclude a polyking from a checkerboard. | |
Polyiamond Exclusion. Exclude a polyiamond from the plane. | |
Polyhex Exclusion. Exclude a polyhex from the plane. | |
Polycairo Exclusion. Exclude a polycairo from the plane. |
Connected Polyomino Magic Squares. Arrange adjacent copies of a pentomino in a square grid to place the same number of cells in each row and column. | |
Two-Pentomino Magic Squares. Arrange copies of two pentominoes in a square grid to place the same number of cells in each row and column. | |
Polyabolo Magic Squares. Arrange copies of a polyabolo in a square grid to place the same number of cells in each row and column. |
Polyiamond Variegation. Color the cells of the polyiamond plane so no copy of a polyiamond has duplicate colors. | |
Polyhex Variegation. Color the cells of the polyhex plane so no copy of a polyhex has duplicate colors. |
Polyking Integration. Join copies of a polyking to form a polyomino. |