The Colossal Killer Sudoku Book - Killer Sudoku

The long-awaited sequel to the Huge Killer Sudoku book is finally here, with 50 "Medium" puzzles, 50 "Tricky" ones, 75 "Difficult", 15 "Very Difficult", and TEN 16x16 Killer Sudokus!All difficult puzzles are printed on their own page, leaving plenty of space for notes. The 16x16 puzzles are printed twice, once on a single page, and once enlarged 4 times on 4 separate pages. Solutions are included in the back of the book. Solve Killer Sudoku and Calcudoku puzzles online at www.calcudoku.org, and submit solutions to the difficult puzzles in this book for points.