All games
Logic
Sudoku
Unique-solution logic with notes, timer and best times.
Controls
- select celltap / click
- place number1–9
- pencil candidatesNotes
- move (desktop)arrows
Hint
Pick a difficulty, tap a cell then a number. Notes for candidates, Hint when stuck.
Tips
- · Click anywhere on the frame to lock keyboard input to the game.
- · Page scroll keys are intercepted while playing.
- · Click outside the frame to release the keyboard.
- · Open fullscreen for the standalone experience — with a way back.