Sudowick
Sudoku in blue-and-white porcelain
Fill the grid so that every row, every column and every box holds each number once. Each grid has one solution you can reach by logic alone, and nothing counts down while you think.
Coming soon to the App Store and Google Play
Free to start on iPhone and Android. No ads, no sign-up.
A small grid in your browser, scored like the game. Choose a cell, then a number.
- Levels
- 1000 in 50 chapters
- Grids
- 6×6 to start, then 9×9
- Daily grid
- One a day, shared by everyone
- Leaderboards
- All time, weekly and daily
- Languages
- Ten, from English to Japanese
- Price
- Free to level 100, then one purchase



Every number, once.
The first two chapters are 6×6 grids with boxes of three by two: the whole game in a few minutes. From level 41 the grid is the full 9×9, and the chapters climb from plain singles to the techniques that make an expert puzzle.
- 1000 levels in 50 chapters
- A new daily grid every day
- Three stars for one mistake or less
- Hints for a tight spot

- Logic, never a guess
- Every grid has exactly one solution, and a solver checks that it can be reached step by step without guessing. If you are stuck, there is a move; the hint shows you where.
- A ladder of techniques
- Early grids need only singles. Later ones ask for locked candidates, pairs and triples, then X-wings and XY-wings; the last bosses want a swordfish.
- Notes that tidy themselves
- Pencil in candidates as small numbers. When a value lands in a row, column or box, it leaves the notes around it on its own.
- Signed in by the platform
- Google Play Games on Android, Game Center on iPhone: leaderboards and cloud save, with no account form.
Free to start.
A hundred grids before you decide anything.
Coming soon to the App Store and Google Play