Samurai 13-grid Sudoku: 101 Samurai

Featuring 101 staggeringly-large 13-grid Samurai Sudoku puzzles, this unique collection of challenging puzzles is sorted into order of increasing difficulty and printed on large, top-quality paper. All of the puzzles are from best-selling puzzle author Gareth Moore, author of many international books.

Each puzzle consists of 13 overlapping 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 neede...