Group of Four is a word-association puzzle: you are shown 16 words and must sort them into four hidden groups of four, where each group shares a connection. The catch is that several words look like they belong in more than one group — spotting the trap is half the challenge.
It is a superb workout for lateral thinking and vocabulary, rewarding the kind of flexible, sideways reasoning that pure logic puzzles do not.
How many groups are there?
Four groups of four, made from sixteen words.
Is there a new puzzle daily?
Yes — a fresh challenge each day.
Is it free?
Yes, free with no account needed.
Can I play on mobile?
Yes, on any modern browser.