About this game
Play Sandwich Sudoku free online. Standard Sudoku rules plus outside clues: each number gives the sum of the digits strictly between the 1 and the N in that row or column. 27 hand-crafted levels across six tiers.
Play Sandwich Sudoku free online. Standard Sudoku rules plus outside clues: each number gives the sum of the digits strictly between the 1 and the N in that row or column. 27 hand-crafted levels across six tiers.