Puzzles worth taking slowly.
BrainFitness is a free home for logic puzzles. Queens, Passage, Else, Sand Blast and more, with a new puzzle every day, plus quick one-minute focus games for when you want a short break.
What is here
Logic puzzles are the heart of the site: no clock, with undo, hints and spoiler-free sharing. The focus games are a small extra, one-minute timed challenges such as Schulte tables and reaction tests that end with a rank you can share. New puzzles keep arriving.
What is not here
No fake player counts, no pretend leaderboards and, for now, no ads. Puzzles never count down, and getting stuck is part of the fun. These games are for entertainment. They are not a medical or diagnostic tool and promise no cognitive benefits.
Your records, your challenges
No account needed. Puzzle progress, personal bests, streaks and saved games stay in your browser. After you solve a level or finish a game, send the link to a friend: they get the very same puzzle, without the answer.