Free Play
Summit of Sums
★★★★☆
- Normal sudoku rules apply: fill every row, column, and 3×3 box with 1–9.
- Cages sum to the small clue in their top-left corner; digits cannot repeat in a cage.
- Cells joined by a V sum to 5; cells joined by an X sum to 10. Not every clue is given — an unmarked pair may still sum to 5 or 10.