Suzzku

About Suzzku

The home screen shows a Continue card for an unfinished game, a Today's puzzle card with the date and the line Same puzzle for everyone, and a month calendar of your daily puzzles. Below it are the levels for a new game, each with its number of blanks, clears and best time; an Easy grid has 37 blanks and a Medium one 45. Every puzzle has exactly one solution.

The game screen shows the level, three hearts for mistakes and a timer with a pause button that hides the board. Under the grid are Undo, Erase, Notes and Hint, with three hints per game, and a number pad that shows how many of each digit are still to place. Pencil notes for candidates are cleared automatically when you place a number. After three mistakes you choose to carry on or start again. When you finish a game you can send a friend a challenge code, such as SZ-9-0, and they race you on the exact same puzzle with no server or login.

Suzzku is made by JongHyun Lee, a Korean app developer who works as 4lovingyou, and came to the App Store in September 2026. It needs no account, keeps your records on the device, and has light and dark themes and 16 languages. It is free and supported by ads, and an optional rewarded ad gives an extra hint.

How to play Suzzku

1. Tap Today's puzzle on the home screen.
2. Fill the grid so every row, column and 3x3 box holds the digits 1 to 9 once each.
3. Select a cell and tap a digit, or switch on Notes to pencil in candidates.
4. Use Undo and Erase to fix entries; three mistakes and you choose to continue or start fresh.
5. Finish to mark the day on your calendar and keep your streak.

Screenshots

Tips

• Watch the small counts under the number pad: a digit with 1 left has only one cell to find.
• Pencil in candidates on harder days; Suzzku clears them for you as you place numbers.
• Expect the daily to be harder late in the week, with Expert on Saturday, and keep your hints for then.
• Pause hides the board, so you cannot study the grid while the clock is stopped.

Questions