About Hard Mode
A full 12-tile grid with just 4 seconds to spot the odd one — a serious attention workout.
Good for: teens, adults, brain-training sessions, competitive players.
About the Sherlock Holmes Theme
Conan Doyle's original Sherlock Holmes stories are in the public domain, so we're free to celebrate the great detective properly. Deerstalkers, magnifying glasses, dossiers and the fog of Victorian London await.