Sudoku Tips for Beginners: Start With the Easiest Wins
Gentle sudoku is not about being clever — it is about having a routine. Here is the routine most experienced solvers started with.
1. Scan for one number at a time
Choose the number that appears most often among the givens. Draw imaginary lines across and down from every one of those numbers. Any box the lines pass through cannot hold that number. Very often exactly one square in a box survives — place your number there, then scan again.
2. Finish nearly-full lines first
A row, column or box with only one or two empty squares is a gift. List the numbers 1 to 9, cross off the ones present, and the missing ones are your candidates. With one square left, there is no choice at all — fill it in and enjoy the momentum.
3. Use small pencil marks
When a square could hold two or three possible numbers, write them small in the corner. As the grid fills in, cross out candidates that stop being possible. When a square is down to a single candidate, promote it to a full-size number. On this site, the keypad lets you change or erase any number you have entered, so you can work the same way.
4. Re-scan after every placement
Every number you place removes possibilities elsewhere. Many beginners get stuck simply because they keep studying the whole grid instead of asking, after each success: "Where else does this change things?" A quick scan of the affected row, column and box after each placement keeps the puzzle moving.
What to avoid
- Guessing a 50/50 early. If two squares look interchangeable, leave them and solve elsewhere. The grid will disambiguate them later.
- Filling too fast. Most errors come from writing a number that was meant for the neighbouring square. Slow is smooth.
Our gentle sudokus are generated with plenty of givens and verified to have exactly one solution, so these four techniques are genuinely all you need. One puzzle a day with your morning coffee is a fine way to play.
