Medium adds two more ways to find a single: counting the colors around one cell until only one fits, and reading your notes for a color with one place left in a row, column or block. Same rules as any sudoku, with nine colors in place of the numbers.
Levels: Easy · Medium · Hard · Expert · All levels
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.
On top of everything Easy uses, Medium boards need Obvious Single: Last Possible and Hidden Single: With Notes. Each one has a short animated lesson.
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.