Shuriken Shikaku
- Killer cages
- Thermometers
The brief
Normal sudoku rules apply.
Digits in cages sum to the value shown.
Digits on thermometers must increase from the bulb end.
The grid is completely covered by non-overlapping rectangles such that each rectangle contains exactly one circle, and the digit in the circle denotes the number of cells in that rectangle. A 1x1 single cell with a circle is valid. Digits may repeat in rectangles if allowed by other rules.