cardinal

✓

The goal of the game is to fill the grid with colors according to the compasses on the starting tiles.

✓

The four numbers in a compass represent how many other tiles of that color need to be North, East, South, and West of the compass.

Every tile of a color must share an edge with another tile of that color.

A blank compass point means any number of that color's tiles can exist in that direction.

✓

Each compass will have at least one other square of its color in the puzzle.

When complete, the grid will be divided into colored regions and there will be no blank tiles.