Sudoku Royal
A 9×9 sudoku for brain training, with pencil notes and a hint to lean on when a grid gets stubborn.
Controls
Pick a square, then click the number to fill it; switch on pencil mode for notes or tap the hint when stuck.
How to Play
Sudoku Royal follows the familiar rules: fill the 9×9 board so the numbers 1 to 9 appear once in each row, column and 3×3 block. It is a steady exercise for your logic and your memory, and the difficulty stretches from gentle to genuinely testing.
Beginners will find their footing faster after reading our step-by-step guide. Once you are going, lean on pencil notes to track options and save the hint for when you are truly stuck.
Tips & Tricks
- Use pencil mode to lay out candidates before you commit any final digit.
- Save the hint for a genuine dead end so you keep the satisfaction of solving it yourself.
- Recheck the whole box once you place a number to make sure it did not create a clash.
Frequently Asked Questions
What is pencil mode in Sudoku Royal?
Pencil mode lets you jot small candidate numbers into a cell without committing, which is handy while you weigh up the possibilities.
Should I use the hint button?
It is there for when you are properly stuck. Using it sparingly keeps the puzzle rewarding while giving you a nudge when needed.
