Pick a mode
Classic, Sudden Death, Speed Run, Daily Challenge, and Duel give each puzzle a different rhythm.
Coming to iPhone and iPad
A polished Sudoku game with animal, sea, number, binary, and Roman numeral tile sets for focused puzzle sessions.
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.