Sudoku
Each number from 1 to 9 must appear in each of the nine rows, nine columns and 3 x 3 blocks. Tip: No number can occur more than once in any row, column or 3 x 3 block. Solution overleaf.
Each number from 1 to 9 must appear in each of the nine rows, nine columns and 3 x 3 blocks. Tip: No number can occur more than once in any row, column or 3 x 3 block. Solution overleaf.