Dennis achievements
Gamer IV Degree
Complete 100 puzzles on Impossible difficulty level
Traveler III Degree
Complete 100 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 V Degree
Complete 10 puzzles from Holidays category on Impossible difficulty level
Art critic V Degree
Complete 10 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 V Degree
Complete 10 puzzles from Stuff category on Impossible difficulty level
Architect V Degree
Complete 10 puzzles from Architecture category on Impossible difficulty level
Homebody V Degree
Complete 10 puzzles from Home category on Impossible difficulty level
Master IV Degree
Take place from 11 to 100 in the player rankings at the Impossible difficulty level.