Twelfth Anniversary Puzzle
It's the twelfth anniversary of my first sudoku puzzle, so I figured I would make a puzzle around the number 12. The puzzle works like a normal sudoku with a few extra clues. Inside each cage, sums of adjacent cells are given if and only if they add up to a divisor of 12. Clues appear whenever possible inside a cage, so if no clue exists between cells, you know for certain those entries do not add up to a divisor of 12. This is important for solving the puzzle. The positive divisors of 12 are 1, 2, 3, 4, 6, or 12, though 1 and 2 do not occur as clues since they don't occur as a sum of distinct positive integers. A higher quality PDF version and the solution can be found in the links below the puzzle. PDF Version Solution
