Our mission
We believe a good logic puzzle is one of the most satisfying ways to spend a few minutes. Our mission is to gather the world’s logic puzzles in one bright, friendly place where anyone can learn the rules and start playing straight away — no app, no sign-up, no cost.
Publisher
Logic Puzzles Online is published by Hamilton Digital Media Limited. The company publishes thoughtful puzzle, strategy, logic and brain-training games across web, mobile and books. You can learn more about the company at https://brianhamilton.xyz/.
Hamilton Digital Media Limited is registered in England and Wales. Company number 15608219. Registered office: 13a Mill Lane, Wimborne, Dorset, United Kingdom, BH21 1LN.
You can also find our puzzle projects on Facebook at https://www.facebook.com/puzzlingfunonline, YouTube at https://www.youtube.com/channel/UCsHm4jrmsEFkgOO3uda62NA and TikTok at https://www.tiktok.com/@puzzlingfun.
Who creates the site
Logic Puzzles Online is co-created by Brian Hamilton and Karan Hamilton. Brian works mainly on the technical side: playable boards, generators, solvers, printable tools and the page features that make the puzzles reliable on modern devices.
Karan brings the player's eye: puzzle ideas, testing, article feedback, wording and whether each game feels clear, fair and satisfying to return to. Together they have worked on puzzle and game projects including Sudoku for Kids, Aces Up Solitaire, Word Search Online, Puzzling Fun, Glorified Calculator, Sudoku Online Puzzles and Logic Puzzles Online.
What you’ll find here
The site features dozens of playable puzzles, from classics like Sudoku, Kakuro and Nonogram to lesser-known gems such as Nurikabe, Masyu and Shikaku. Each puzzle comes with clear rules, adjustable difficulty and instant feedback.
Alongside the games we offer free puzzle solvers, printable puzzle sheets, and a growing blog of strategy guides that explain the techniques behind each puzzle type.
How we build our puzzles
Every puzzle is generated to have a unique, logically solvable solution where that is part of the puzzle type. We test our generators and solvers carefully so that the difficulty labels are meaningful and each grid plays fairly. Read more about this on our How we make and test puzzles page.
Available in your language
We are translating the site into many languages, including French, Spanish, German, Italian, Portuguese, Polish, Dutch, Japanese and Traditional Chinese, so that players around the world can enjoy the same puzzles in their own language.
Get in touch
We love hearing from players. Whether you have feedback, a puzzle request or a bug to report, write to us at [email protected].