
usage:

 OPTIONS   DESCRIPTIONS

 -n <num>    size of square grid
 -r <num>    ratio of cells in the goal state
 -u <num>    number of unavailable locations ---which are randomly arranged

 -s <num>    random seed (optional)


IPC: -u 0 -n x Full (-r 1)  and Half (-r 0.5) instances

IPC 14 x from 5 to 18

As in the IPC, we follow two linear scalings: full and half







