This is the second in a series of three puzzles which get progressively more difficult. Finish the puzzle for a link to the third. Or wait, and I’ll post it here.
Rules:
Normal Sudoku rules apply.
Killer Sudoku: The digits in each cage sum to the small number in the top left corner of that cage.
Estimated difficulty: 1.5 out of 5
Solve on SudokuPad