Killer Samurai Sudoku: 101 Samurai in Bloomington, MN

Featuring 101 Killer Samurai Sudoku puzzles, sorted into order of increasing difficulty and printed on large, top-quality paper, this unique collection of puzzles is full of attractively-designed challenges from best-selling puzzle author Gareth Moore, author of many international books.
Each puzzle consists of 5 overlapping Killer Sudoku grids, arranged so that you must solve all of them simultaneously to arrive at the unique solution to the overall puzzle. Guessing is never needed - only sensible logical deductions.
Killer Sudoku adds dashed-line cages to regular Sudoku. Each cage must sum to a given value but without repeating a digit.
Visit www.PuzzleBooks.org for a full list of other titles in this series.