™ Sudoku 4x4 vs Spiidoku Sudoku 6x6 Usage & Stats

Four is the #1 brain puzzle game. Simply fill the numbers so that each row, each column and each square has all the numbers 1, 2, 3, 4 and you will win the game! Features ◆ Millions of puzzles of varying difficulty levels ◆ Undo ◆ Highscores and achievements to compare your level with that of other players in the world ◆ Simple and clean interface ◆ Save / load unfinished games