New York Post Fiendish Sudoku: The Official Utterly Addictive Number-Placing Puzzle in Bloomington, MN

200 New Puzzles — From Fiendish to Super Fiendish
Su Doku, "the crossword without words," comes with a warning: it is seriously addictive. You don't need to be a mathematical genius to solve these puzzles; it is simply a question of logic and a little patience.