---
title: "Mistake Rush #5: 5 Sudoku Boards, 5 Mistakes | Sudoku Flow"
description: "Five small Sudoku boards, one wrong number in each. Mistake Rush #5: count how many you find, then check every answer."
url: https://sudokuflow.com/puzzles/mistake-rush-5/
language: en
---
[Puzzles](https://sudokuflow.com/puzzles/) / Mistake Rush #5
Mistake Rush
# Mistake Rush #5
Five small boards, one wrong number in each. In the video you get a few seconds per board; here you can take your time.
[Watch on YouTube](https://youtube.com/shorts/edjraX3zceo)
## Board 1 · 4×4
Tap the digit you think is wrong.
Mistake Rush #5 · Board 1 · 4×4:
```text
2* 4* | . 3
3* . | 4 .
------+------
1 3 | 2* 1*
. 2 | 3 .
```
Digits marked * were filled in by a player; the others were printed with the puzzle.
Show the answer
It's the blue 1 in row 3, column 4. Row 3 already has a printed 1 (row 3, column 1). A printed digit can't be wrong, so the blue one is. The right digit for that cell is 4.
## Board 2 · 4×4
Tap the digit you think is wrong.
Mistake Rush #5 · Board 2 · 4×4:
```text
2* . | 4* 1
1 . | 2* .
------+------
. 3* | 1 2*
2 1 | . 4
```
Digits marked * were filled in by a player; the others were printed with the puzzle.
Show the answer
It's the blue 2 in row 1, column 1. Column 1 already has a printed 2 (row 4, column 1). A printed digit can't be wrong, so the blue one is. The right digit for that cell is 3.
## Board 3 · 6×6
Tap the digit you think is wrong.
Mistake Rush #5 · Board 3 · 6×6:
```text
6 3 1 | . 4 5
. 2 5* | 1* 3* 6*
---------+---------
2* 6* . | 4 . .
5 1 4* | 5* 6 2
---------+---------
3 5* 2* | . 1 4
. . 6 | . . 3*
```
Digits marked * were filled in by a player; the others were printed with the puzzle.
Show the answer
It's the blue 5 in row 4, column 4. Row 4 already has a printed 5 (row 4, column 1). A printed digit can't be wrong, so the blue one is. The right digit for that cell is 3.
## Board 4 · 6×6
Tap the digit you think is wrong.
Mistake Rush #5 · Board 4 · 6×6:
```text
. 5 3 | . . .
1* . . | 3* 4* .
---------+---------
6 4 1 | 2* 3 5*
2 3* 5 | 4 1* 6
---------+---------
3* 2* 6 | . 5* 4
. 1 4 | 3 . 2*
```
Digits marked * were filled in by a player; the others were printed with the puzzle.
Show the answer
It's the blue 3 in row 2, column 4. Column 4 already has a printed 3 (row 6, column 4). A printed digit can't be wrong, so the blue one is. The right digit for that cell is 5.
## Board 5 · 6×6
Tap the digit you think is wrong.
Mistake Rush #5 · Board 5 · 6×6:
```text
5* 3 6 | 4* . .
1* . 4* | 3* . 5
---------+---------
4* 5* . | . 1 .
. 1 2 | 5 2* 4
---------+---------
2* 4* 1 | 6 5 .
3 6 5 | . 4 2*
```
Digits marked * were filled in by a player; the others were printed with the puzzle.
Show the answer
It's the blue 2 in row 4, column 5. Row 4 already has a printed 2 (row 4, column 3). A printed digit can't be wrong, so the blue one is. The right digit for that cell is 3.
## 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.