Fill in the white squares with BD items such that:
- Each row and each column contains all the 10 items exactly once (border not included): Rockford, space, dirt, wall, growing wall, titan wall, slime, boulder, diamond, firefly.
- The construction remains stable, that is:
Boulders, diamonds and fireflies should not be able to fall, move or kill Rockford (provided that the Rockfords don't move);
Boulders and diamonds should not fall through slime;
Growing walls should not grow.
