This page allows you to enter any forward sudoku puzzle at your convenience.
Entering a number with the mouse:
• Select your square by clicking in it.
• Click on one of the numbers in the left column.
Entering a number with the keyboard:
• You can move the cursor with the four arrow keys and the Tab key on the keyboard.
• Type the number in the appropriate square.
We recommend Google Chrome which is easy to use and displays with impressive speed advice and various solutions sent by the server.
The button (Play in verbose mode) allows you to play the grid with all candidates marked and various tips.
The button (Check / resolvability) ensures the consistency of the puzzle without giving the solution.