Complete a Hard Puzzle
Complete an Expert Puzzle
Complete an Unsigned Puzzle
Complete a 7x7 Puzzle
Complete an 8x8 Puzzle
Complete a Challenge Puzzle
Complete all 3x3 Puzzles
Complete all 9x9 Puzzles
Complete all 8x8 Puzzles
Complete all 7x7 Puzzles
Complete all 6x6 Puzzles
Complete all 4x4 Puzzles
Complete all 5x5 Puzzles
Complete all 9x9 Expert Puzzles
Complete all 9x9 Unsigned Puzzles
Complete all Puzzles!
Earn all other achievements.
Go where parallels meet