Bubble Sudoku is classic 9x9 sudoku played with nine colored bubbles instead of the numbers 1 to 9. The rules don’t change: every row, column and 3x3 block holds each color exactly once. There is no math, just logic you can see.
Every day brings one new board, the same for every player. Finish it, see how your score compares, and share your result without spoiling the board.
Easy needs only hidden singles. Medium adds obvious singles, Hard adds pairs and pointing, and Expert adds the X-Wing and Swordfish. Each level says what it takes, so you know what you’re in for.
A hint doesn’t just fill in a cell. It names the technique and walks you through why the move works. Every technique also has its own animated lesson, and the two-minute tutorial covers the basics.
Open it and play. Also on the App Store and Google Play.
Clears your saved best score for every difficulty in this browser. Nothing else is kept here.
