Example problem:

The deck measures 16 units by 16 units. There are 10 containers, in three classes:

A          B         C
6x8        4x4       4x8
4x6        4x4       4x8
4x4        4x6       4x6
4x6


Containers of classes B and C are constrained to be at least 4 units apart in at least one of the north-south or east-west directions.

File Type Notes
easy-essence.param Essence

An easy instance in the Essence format. Given mainly as an example.

harder-essence.param Essence

Another instance in the Essence format.