Brown Belt Sudoku Variants

300 Puzzles
The Martial Arts Puzzle Series is ranked by different color belts. The Brown Belt volume contains hard puzzles, and features sudoku variations such as overlapping grids, irregular regions, "killer" sudoku, diagonals, and more.
Get ready to fight your way to the top of the sudoku ranks! Each book in this Martial Arts sudoku series will contain 300 puzzles, with a different blend of sudoku variants depending on the difficulty level. Brown Belt Sudoku Variants will include puzzle types featured in the Green Belt at a higher level, as well as some additional variants.

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• Rest of the World: 9 to 21 working days

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