Pick a mode
Classic, Sudden Death, Speed Run, Daily Challenge, and Duel give each puzzle a different rhythm.
Coming to iPhone and iPad
Zoodoku
A polished Sudoku game with animal tiles, classic number play, daily challenges, speed runs, and duel modes for local competition.
Choose notation
Play with numbers, letters, colors, or animal tiles while keeping the same Sudoku logic.
Learn the logic
Hints explain techniques so players can improve instead of only getting the answer.