Variety is the spice of sudoku—so solvers will love these wild variants on the popular puzzle, which up the challenge and the fun! Sudoku took the puzzle world by storm, but some fans have grown a bit bored with the constant repetition of 1 through 9 and 3×3 boxes. With variations such as overlapping and oversize grids, diagonals, shaded squares, and more, these puzzles bend the rules and bring something new to the game. Each gem is like a crazy cousin of standard sudoku—and solvers will be overjoyed to join the family reunion.