NN achievements
Gamer III Degree
Complete 500 puzzles on Impossible difficulty level
Traveler II Degree
Complete 500 puzzles from Cities of the world, Countries category on Impossible difficulty level
Animal lover V Degree
Complete 10 puzzles from Animals category on Impossible difficulty level
Party King IV Degree
Complete 50 puzzles from Holidays category on Impossible difficulty level
Art critic IV Degree
Complete 50 puzzles from Art category on Impossible difficulty level
Sportsman V Degree
Complete 10 puzzles from Sport category on Impossible difficulty level
Astronaut V Degree
Complete 10 puzzles from Space category on Impossible difficulty level
Techie V Degree
Complete 10 puzzles from Technics category on Impossible difficulty level
Historian V Degree
Complete 10 puzzles from History category on Impossible difficulty level
Collector IV Degree
Complete 50 puzzles from Stuff category on Impossible difficulty level
Architect IV Degree
Complete 50 puzzles from Architecture category on Impossible difficulty level
Homebody II Degree
Complete 500 puzzles from Home category on Impossible difficulty level
Master III Degree
Take place from 4 to 10 in the player rankings at the Impossible difficulty level.