5 Free Logic Puzzles to Play Online
Logic puzzles are one of the best ways to train your brain while having fun. And with modern browsers, you can play them for free without downloading anything. Here are 5 of the best logic puzzles you can play online right now.
1. Sudoku
The world's most popular logic puzzle. Fill a 9×9 grid with digits 1-9 so that each row, column, and 3×3 box contains each digit exactly once. Simple rules, deep strategy. At Sudoku Dojo, you can play 6 difficulty levels from Beginner to Master — all free, with built-in hints.
2. Kakuro
A crossword-like puzzle that combines Sudoku with addition. Fill each cell with a digit 1-9 so that the sum of each horizontal and vertical run matches the given clue. Popular among Sudoku fans looking for a new challenge.
3. Nonogram (Griddlers)
Reveal a hidden picture by filling cells based on number clues. Also known as Picross or Paint-by-Numbers. Extremely satisfying when the image is revealed.
4. Slitherlink
Connect dots to form a single loop based on number clues. A unique logic puzzle invented in Japan that requires a different kind of logical thinking.
5. Futoshiki
A Sudoku-like puzzle with inequality constraints. Use greater-than and less-than signs as additional clues to place digits. A great next step after Sudoku.
Start with Sudoku — it's free and fun!
Play Sudoku Free