Cage-Sum (aka Killer) Sudokus
Christmas Sudoku Puzzles 2008
1) Cracker : - How many Sudoku players does it take to change the light-bulb at the top of a Christmas tree?
Find the Message : -
Gattai-5 Number 1 (5 overlapping Sudokus - to solve one, you must solve all!)
Gattai-5 Number 2 (5 overlapping Sudokus - to solve one, you must solve all!)