Odd-Even Sudoku

About this game

Play Odd-Even Sudoku free online. Solve 27 parity puzzles where cells with markers must hold odd or even digits. Beginner to Master tiers.

How to play

What is Odd-Even Sudoku?

Odd-Even Sudoku is a Sudoku variant where certain cells are marked with a circle. An orange-circled cell must contain an odd digit (1, 3, 5, 7, 9), and a cyan-circled cell must contain an even digit (2, 4, 6, 8). Unmarked cells have no parity constraint.

How do I play Odd-Even Sudoku?

Fill the grid so every row, column and box contains each digit exactly once. Cells with an orange circle must hold an odd digit; cells with a cyan circle must hold an even digit. Tap a cell then tap a digit on the number pad to place it.

Is Odd-Even Sudoku free?

Yes. Odd-Even Sudoku on GameZipper is 100% free to play in your browser with 27 puzzles across Beginner to Master tiers. No download or sign-up required.

How many levels does Odd-Even Sudoku have?

There are 27 hand-crafted levels across six tiers: Beginner (4x4), Easy and Medium (6x6), and Hard, Expert and Master (9x9). Each puzzle has a unique solution verified by a solver.