Rules of Stostone:
- Shade exactly one stone, an orthogonally-connected group of cells, in each region.
- No two stones in different regions are adjacent.
- If a number is in a region, it tells the size of that region’s stone.
- If you let the stones all fall down, they must cover exactly the bottom half of the grid.
The standard Stostone rules apply. The blue color is just for cosmetic purposes.
The puzzle (the full-resolution image can be found here):
This might be the biggest puzzle I've ever set. This puzzle celebrates the birthday of my OC (Original Character), Tenryuu Aoi, which I use as my profile picture, :). Special thanks to chaotic_iak and Nusi for testing the puzzle!