Sudoku Zenoku: Ice & Killer

Zenoku is a classic Sudoku puzzle game with Ice Sudoku and Killer Sudoku modes for focused brain training, daily challenges, and calm offline play.

Solve clean 9x9 number puzzles at your own pace. Use notes to track candidates, hints when you need a nudge, and multiple difficulty levels that support beginners and experienced players.

Why play Zenoku?

- Classic 9x9 rules: fill every row, column, and 3x3 box with numbers 1 to 9.
- Ice Sudoku mode: clear frozen cells and break multi-hit ice blocks.
- Killer Sudoku mode: solve cage sums while keeping classic Sudoku logic.
- Daily challenges: build a daily Sudoku habit and collect monthly trophies.
- Notes and hints: reason through hard logic puzzle moments without losing your flow.
- Thousands of puzzles: keep playing fresh number puzzle boards across skill levels.
- Offline puzzles: solve Sudoku boards when you are away from a connection.
- Strategy guide: learn solving ideas step by step and improve your logic.
- Clean board design: readable numbers, smooth controls, and simple navigation.

Try Ice Sudoku and Killer Sudoku

Ice Sudoku adds a tactical layer to classic Sudoku. Some cells are frozen behind ice, and each correct move helps clear the board. Killer Sudoku adds cage sums, asking you to combine arithmetic clues with row, column, and box logic. Both modes keep the familiar Sudoku rules while giving experienced players fresh puzzle challenges.

Learn Sudoku through practice

Zenoku is built for players who want more than a random brain game. The strategy guide helps you understand solving patterns, while notes and hints make each board easier to study. You can play a quick puzzle break, return to a saved game, or take on a daily challenge for steady progress.

Calm, focused, and fair

The board keeps attention on the numbers. Clear highlights, comfortable controls, and a quiet visual style make each session easy to read. Every puzzle is designed for logic, patience, and careful thinking, so progress feels earned.

Play Zenoku for classic Sudoku, Ice Sudoku, Killer Sudoku, daily challenges, offline Sudoku puzzles, logic training, trophies, and a clean classic number puzzle experience.