Into each non-gray cell place a digit from 1-9. Digits cannot repeat within a row, column, or box. Every digit in the puzzle is part of an orthogonally connected clump of digits that sums to 10. Digits may repeat within clumps if allowed by other rules. Clumps do not overlap with other clumps. A circled cell gives the number of clumps in the up to 9 surrounding cells (including itself).