A game by Shisaku
Sudoku Shogun
Start with the Sudoku you know, then take on bigger grids. Free in your browser, no ads, no account.
Five ways to play
Classic Sudoku
Easy, Medium or Hard on a familiar 9×9 grid, with pencil notes, check, undo and redo.
Expand
Solve a grid, then choose a corner for the next one. Each new grid shares a corner cell with an existing grid, so your puzzle grows. Some corners get blocked, so your route matters.
Samusamu
A 57×57 layout of 21 grids. Complete the 20 outer grids to unlock the Middle, the final puzzle. Zoom out for the whole layout, zoom in to focus on one grid.
Daily and weekly
Three daily puzzles and a weekly Samusamu, the same for everyone, with an archive.
Speed
Find the missing digit in a row, column or box. A round starts at 60 seconds.
Android preview
Development previews of the Android app. Layout and details may still change.




Where you can play
- PlayableWeb version: free in your browser, no ads, no account. After your first visit it also works offline.
- In developmentAndroid app. It is being tested and is not on Google Play yet. No release date.
- In developmentiPhone app, after Android. No release date.
We will announce Android and iPhone here when they are available. Until then there are no store links.
Your data
You can play without an account, and your games and progress stay on your device. The game has its own privacy statements: web version and Android app. Questions? Contact support.