Complete your first Sudoku puzzle
Complete a 9x9 puzzle within 3 minutes
Complete a Sudoku with zero mistakes
Complete your first Adventure level
Reach Adventure Level 6
Save a custom level in the Level Editor
Complete 5 puzzles in a row without using hints
Complete an Adventure level with zero mistakes
Complete 50 Sudoku puzzles
Complete the first step of the tutorial
Complete a 4×4 puzzle in under 10 seconds