Stories, strategy, and the science of getting smarter
Notes on puzzles and the brains that love them, from our team and the wider KenKen community. New pieces most weeks.
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7 KenKen Strategies That Cut Your Solving Time in Half
Practical KenKen tips and strategy: single-cell freebies, cage math shortcuts, pencil marks, and elimination habits that help you solve KenKen faster.
Logic Puzzles for Beginners: How to Start and Get Good
A friendly, no-jargon guide to logic puzzles for beginners: what they are, the main types worth trying, and a simple three-step method for how to solve logic puzzles without ever guessing.
15 Math Riddles With Answers, Easy to Hard
Fifteen math riddles with answers, ordered easy to hard, from a dozen-eggs warm-up to a lily pad that fools almost everyone. Every number riddle comes with a short, honest explanation.
The 8 Best Brain Games to Play Every Day
The best brain games to play daily, sorted by what they actually train. From KenKen and sudoku to chess puzzles, here is what each one does for your mind and where the science stops.
NO-OP KenKen: The Variant That Hides the Operator
A plain-English guide to no-op KenKen, the variant that deletes the operation sign so you have to deduce it yourself. Why it is harder, how to solve it, and who it is for.
20 Riddles for Adults That Will Actually Make You Think
A curated set of 20 riddles for adults, from wordplay to what-am-I to lateral thinking, each one a genuine head-scratcher and every riddle paired with its answer so you can check your work.
6 Mental Math Tricks That Make KenKen Feel Easy
Six practical mental math tricks for KenKen, from factor pairs and complements to parity and sum ranges: KenKen math help that lets you read a grid instead of doing arithmetic on every cage.
What Does KenKen Actually Mean?
What does KenKen mean? The name comes from the Japanese word for cleverness, doubled for emphasis, and the puzzle's original title translates to 'the puzzle that makes you smarter.' A quick tour of the KenKen name meaning.
Brain Teasers for Kids: Fun Challenges by Age
Age-appropriate brain teasers for kids, from simple riddles for little ones to logic puzzles for teens. Real examples with answers, plus tips to keep it fun and build confidence.
Today's Puzzle is Waiting
You know the math. Now see what your brain can do.