Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Concept	Solve 75 puzzles.
End	You solved it all! You are amazing!
Fractions	Gather 250 hints in total.
Fragments of whole	Gather 500 hints in total.
Idea	Solve 25 puzzles.
Knowledge	Solve 150 puzzles.
Learn	Complete tutorial levels.
Lockpick	Unknown.
Sacrifice	Unknown.
Scraps	Gather 10 hints in total.
Shards	Gather 50 hints in total.
Static	Unknown.
Sword	Unknown.