119129 - figure-ground reversal, and five other maps

All the blue (except around the middle plank, where mice start) is actually invisible ground, and the visible planks actually disappear when touched. So everything's backwards--pretty cool, I thought.

The voters disagreed, however. I also made five other maps, four of them clones, using invisible ground. They've all since been deleted, and they're not very interesting to look at, so I'll only post the code of the screened one here.

   119129     -dead-       figure-ground reversal
   119134     -dead-       untouchable cheese
   119138     -dead-       cheese palace 24, with invisible plank
   119142     -dead-       double vacuum 5, with invisible plank
   119145     -dead-       tramp madness 58, with invisible planks
   119157     -dead-       discovery 0, with invisible planks