
Krychle Sudoku 4x4: 120 3D Sudoku Cubes, 3 grids in 1 - Paperback
Krychle Sudoku 4x4: 120 3D Sudoku Cubes, 3 grids in 1 - Paperback
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by Sudoku Magazine (Author)
Fill in the cube so that on all sides of the cube so that each digit appears exactly once in every row, column, and outlined 2 2 region. Additionally, the digit on the common edge of two sides must be the same number.



















