Sudoku

Has standard 9x9 Sudoku, as well as 6x6 and 4x4 if you want to play a quick game. Choose a time limit or play untimed, and select from four different board themes.

Controls:

• CTRL to toggle between note-taking and entry modes (with a board cell selected)
• Buttons on righthand panel:
  • ✔ = submit game
  • ↶ = undo
  • ↷ = redo
  • ⏸︎ = pause timer
  • ⚙ = does nothing for now (would be settings menu)