--- title: "Find the Mistake Sudoku #25 | Sudoku Flow" description: "Sudoku puzzle #25: a half-finished board with 58 digits, 32 of them filled in by a player, and one of those is wrong. Find it in five seconds, then check the answer." url: https://sudokuflow.com/puzzles/find-the-mistake-25/ language: en --- [Puzzles](https://sudokuflow.com/puzzles/) / Find the mistake #25 [Find the mistake](https://sudokuflow.com/find-the-mistake/) # Find the mistake #25 One digit on this board breaks the rules. The game is half finished: some digits were printed with the puzzle, the others were filled in by a player. Give yourself five seconds before the video shows it. ## Reading the board ## Where to start This board has 58 digits and 32 of them are blue, so those 32 are the only suspects. The most crowded line is column 6, with 9 digits: a good place to start. [How to find a mistake in Sudoku →](https://sudokuflow.com/guides/find-a-mistake/) ## Try it here Tap the digit you think is wrong. Sudoku board for Find the mistake #25: ```text . 6* 2 | . 5* 8 | 3* 7* 9* . 5* . | . 3 7 | 1* 6* . 3 . . | . . 2* | 4 5 . ---------+----------+--------- 2 . . | 7* . 6* | 5* 9* 3 6 . . | 5 . 9* | 7* 1 . 5* 9 . | 3* . 1 | 6* 8 . ---------+----------+--------- 8 2 1* | 6* 7 4* | 9* 3* 5* 7* 3* 6* | . . 5* | 8 4 1* 9 4 5* | 8 1* 3 | 7 2* 6 ``` Digits marked * were filled in by a player; the others were printed with the puzzle.
Show the answer It's the blue 7 in row 5, column 7. Column 7 already has a printed 7 (row 9, column 7). A printed digit can't be wrong, so the blue one is. The right digit for that cell is 2.
Video transcript **On screen:** One number is wrong. / How fast did you find it? **Voice:** One number is wrong! Three! Two! One! Right there! How fast did you find it?
How fast did you find it? Tell us under the video. [Watch on YouTube](https://youtube.com/shorts/u5V7yLybXKE)
Embed this puzzle Copy this code to show the puzzle on your own site or blog. It links back here.
## More puzzles [![Find the mistake #24](https://sudokuflow.com/media/puzzles/find-the-mistake-24-en.jpg?v=584488d239)](https://sudokuflow.com/puzzles/find-the-mistake-24/): Find the mistake #24 11 s video [![Find the mistake #23](https://sudokuflow.com/media/puzzles/find-the-mistake-23-en.jpg?v=7db0cdf27d)](https://sudokuflow.com/puzzles/find-the-mistake-23/): Find the mistake #23 11 s video [![Find the mistake #22](https://sudokuflow.com/media/puzzles/find-the-mistake-22-en.jpg?v=ce2a3d139c)](https://sudokuflow.com/puzzles/find-the-mistake-22/): Find the mistake #22 11 s video [![Find the mistake #21](https://sudokuflow.com/media/puzzles/find-the-mistake-21-en.jpg?v=15f9ef203b)](https://sudokuflow.com/puzzles/find-the-mistake-21/): Find the mistake #21 11 s video ![Sudoku app icon](https://sudokuflow.com/assets/app-icon.png) ## Want more boards like this? We also make a Sudoku app for iPhone, iPad, Mac and Android. There are no ads in it at all, it works offline, and when you ask for a hint it shows you the technique instead of just filling in a number. [App Store iPhone, iPad, Mac](https://apps.apple.com/app/apple-store/id6502922368?pt=125379530&ct=sudokuflow_web&mt=8) [Google Play Android](https://play.google.com/store/apps/details?id=com.rubigogames.sudoku&referrer=utm_source%3Dsudokuflow%26utm_medium%3Dweb%26utm_campaign%3Dsite) Sudoku Flow is made by Rubigo Games, the developer of the Sudoku app recommended on this site.