How to play
Find groups of four words that share something in common.
Select four words and tap Submit to check if they belong to the same group.
Watch out
Each puzzle has exactly four groups of four words. Some words may seem like they fit in more than one group — stay sharp.
You have four mistakes before the game ends. If you're one word away from a correct group, you'll get a hint.
Categories
Groups range from straightforward to tricky. The colors reveal the difficulty after you solve them:
From easiest to hardest.