LockDice

Arrange a set of dice on a grid. The number on each die must exactly match the number of cells it is adjacent to. Cells that are blocked by walls or located at the edges of the grid are not counted as adjacent.

Some dice have blocked sides. After placing a die, you can rotate it. Cells adjacent to blocked sides are not counted.

A special type of die is the magic die. Its value is determined by the number of adjacent dice. They are useful for filling in complex areas, but require careful placement.