Dosun-Fuwari
![]() |
![]() |
Sample | Solution |
Rules
- Place balloons (white circles) and iron balls (black circles) according to the following rules.
- Place one balloon and one iron ball in each of the areas surrounded by bold lines.
- Balloons are light and float, so they must be placed in one of the cells at the top, or in a cell right under a black cell (filled-in cell) or under other balloons.
- Iron balls are heavy and sink, so they must be placed in one of the cells at the bottom, or in a cell right over a black cell or over other iron balls.