Solve your first puzzle. (The game does not save, so all achievements are single session)
Complete Normal Series A Puzzles 1-5.
Complete Normal Series A Puzzles 6-10.
Complete Normal Series B Puzzles 1-5.
Complete Normal Series B Puzzles 6-10.
Complete every Normal Series puzzle in under 5 Minutes each.
Complete 5 Easy Random Puzzles.
Complete 10 Easy Random Puzzles.
Complete 5 Medium Random Puzzles.
Complete 10 Medium Random Puzzles.
Fill 40 squares in a Hard Random Puzzle without making a single mistake.
Solve 5 Puzzles in a row without making a single mistake.
''Solve'' a puzzle without entering any squares.
Solve a puzzle while you can barely see the game. (No Starting Hint)
Solve a puzzle with the starting hint turned on.
Nice try, but that doesn't work here.