THE HEALTHY BRAIN BOOK OF SUDOKU VARIANTS
Flex your mind with these twisty Sudoku. Sudoku variants are a fun, accessible way to do that, since almost everyone knows the basics of the game, but its variations are nearly endless. Within each chapter, puzzles start out easy, progress in difficulty, with a final chapter that combines multiple Sudoku variants in each puzzle. Solutions included.
Publishing status: Current
Item #: 1929623