Even experienced players slip up sometimes. Here are the most common mistakes and how to fix them:
1. Guessing Instead of Using Logic
Guessing often leads to dead ends. Always rely on reasoning.
2. Forgetting to Scan All Sections
Rows, columns, and 3×3 grids must be checked equally.
3. Not Using Pencil Marks
Candidate notes help you track possibilities clearly.
4. Ignoring Hidden Singles
Sometimes only one number can fit—even if it’s not obvious at first glance.
5. Rushing the Puzzle
Sudoku rewards patience. Slow down for better accuracy.
6. Erasing Too Often
Use small marks to minimize messy pages.
7. Overlooking Duplicates
A repeated number in a row or column means something is wrong.
8. Not Taking Breaks
A fresh mind sees new solutions.
9. Avoiding Harder Levels
Challenging puzzles help improve skills faster.
10. Not Checking Work
A quick scan at the end prevents unnoticed errors.
Want to sharpen your skills? Our Sudoku books offer puzzles for every level—perfect for improving accuracy and technique.