Tic-Tac-Logic: X or O?

In-app purchases
1.76K reviews
Content rating
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About this game

Fill all squares so there are no more than two adjacent X's or O's in a row or column! Each puzzle consists of a grid containing X's and O's in various places. The object is to place X or O in remaining squares so there are no more than two consecutive X's or O's in a row or a column, the number of X's is the same as the number of O's in each row and each column, and all rows and all columns are unique.

Tic-Tac-Logic is a single-player puzzle based on Tic-Tac-Toe, a pencil-and-paper game many of us used to enjoy as children. Using pure logic and requiring no math to solve, these addictive puzzles offer endless fun and intellectual entertainment to puzzle fans of all skills and ages.

The game features a ruler to help viewing and comparing rows or columns, counters to show how many X and O there are in each row and column, and pencilmarks to place temporary X or O when solving very hard puzzles.

To help see the puzzle progress, graphic previews in the puzzle list show the progress of all puzzles in a volume as they are being solved. A Gallery view option provides these previews in a larger format.

For more fun, Tic-Tac-Logic contains no ads and includes a Weekly Bonus section providing an extra free puzzle each week.


• 120 free Tic-Tac-Logic puzzles
• 30 extra-large puzzles bonus for tablet only
• Extra bonus puzzle published free each week
• Multiple difficulty levels from very easy to extremely hard
• Grid sizes up to 18x24
• Puzzle library continuously updates with new content
• Manually selected, top quality puzzles
• Unique solution for each puzzle
• Hours of intellectual challenge and fun
• Sharpens logic and improves cognitive skills


• No ads
• Unlimited check puzzle
• Unlimited Undo and Redo
• Pencilmarks for solving hard puzzles
• Ruler for easy row/column viewing and comparing
• Row and column counter boxes
• Concurrently playing and saving multiple puzzles
• Puzzle filtering, sorting and archiving options
• Graphic previews showing puzzles progress as they are being solved
• Portrait and landscape screen support (tablet only)
• Track puzzle solving times
• Backup & restore puzzle progress to Google Drive


Tic-Tac-Logic have also become popular under other names such as Binero, Binaire, Binairo, Binoxxo, Noughts and Crosses and Takuzu. Similar to Sudoku, Kakuro and Hashi, the puzzles are solved using logic alone. All puzzles in this app are produced by Conceptis Ltd. - the leading supplier of logic puzzles to printed and electronic gaming media all over the world. On average, more than 20 million Conceptis puzzles are solved each day in newspapers, magazines, books and online as well as on smartphones and tablets across the world.
Updated on
Apr 3, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App info and performance
Data isn’t encrypted
You can request that data be deleted

Ratings and reviews

1.49K reviews
Tony Dercola
August 31, 2023
Great game. 4 suggestions: change, or option, to make totals on left and top count down instead of up. 100% of the time, doing mental math to subtract those totals from 7,5,etc. They'll go negative if you mess up, but now they go above the total with no notification. 2: Option to include pencilmarks in the totals. 3: Option to place O with long tap vs. double tap. 4. For all games, same as others: dark mode would be big +++ & bring more play/$. Hope these suggestions can get on the queue...Thx!
4 people found this review helpful
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Conceptis Ltd.
September 3, 2023
Thank you for your feedback and suggestions. Dark Mode is already in process. We started releasing this in our iOS apps and will soon move on with the Android apps. As for the other suggestions, we added them to our list and will discuss when we make our next app feature improvements.
A Google user
April 7, 2020
Installed this after competing a Kurosu in the paper, same idea and fairly enjoyable however unlike the Kurosu whereby you essentially can't go very wrong if you're methodical the app seems to rely a lot more on trial and error which detracts from the overall enjoyment of it. Leaving many squares left open to interpretation and simply having to begin filling until you find a problem and having to back track just doesn't feel rewarding. Unless of course I'm actually missing something here?
18 people found this review helpful
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Conceptis Ltd.
April 4, 2020
All steps in these puzzles can be done using logic alone. No guessing is necessary, and there is always one unique solution. In case you get stuck in a puzzle, or feel that you have to guess, please send us a screenshot to support@conceptispuzzles.com and we will guide you with the next step.
Ryan Black
December 13, 2020
Poorly designed. I love tic tac logic games, but this one isn't good. Way too many of the puzzles don't build outward when you fill in squares, so they just end up relying on guessing and checking whether it's correct. If the puzzles were designed well, you would never need to guess, even on the hardest levels. The app called "tic tac toe logic" has way better puzzles.
14 people found this review helpful
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Conceptis Ltd.
December 13, 2020
Thank you for your review, but our game is different and includes a special rule: "All rows and all columns are unique". This rule, which does not exist in "Tic tac toe logic", makes the puzzles more interesting and in a wider range of difficulties. Please try solving the puzzles with the above rule, and you will see that no guessing is required.

What's new

This major update introduces new architecture, features and improvements:

• Puzzle packs are now split into Library, showing free and purchased puzzle packs, and Shop, showing puzzle packs you can buy
• Filtering by difficulty, size, and price
• Improved sorting options
• Previous/next navigation when completing a puzzle
• Wishlist
• Archiving in the Library section
• Automatic restoring purchases when re-installing the app
• Automatic puzzle pack list refreshing in the Shop section