Grille téléchargée depuis www.123sudoku.net
L'utilisation d'une police à taille fixe est recommandé.
Niveau : difficile
/----+----+----+----+----+----+----+----+----\ 
|  xx|    |    |    |    |    |    |    |    |
|xx  |14  |37  | 4  | 5  |13  |21  |36  |14  |
|----+----+----+----+----+----+----+----+----|
|  36|    |    |    |    |    |    |    |    |
|    |    |    |    |    |    |    |    |    |
|----+----+----+----+----+----+----+----+----|
|  39|    |    |    |    |    |    |    |    |
|    |    |    |    |    |    |    |    |    |
|----+----+----+----+----+----+----+----+----|
|   4|    |    |    |    |   6|    |    |    |
|    |    |    |26  | 4  | 3  |    |    |    |
|----+----+----+----+----+----+----+----+----|
|  28|    |    |    |    |    |    |    |    |
|    |    |    |    |    |    |    |    |18  |
|----+----+----+----+----+----+----+----+----|
|  xx|  31|    |    |    |    |    |    |    |
|xx  |11  |    |    |    |    |    |    |    |
|----+----+----+----+----+----+----+----+----|
|   6|    |    |    |    |    |   3|    |    |
|    |    |    |    | 8  | 5  | 7  |    |    |
|----+----+----+----+----+----+----+----+----|
|  37|    |    |    |    |    |    |    |    |
|    |    |    |    |    |    |    |    |    |
|----+----+----+----+----+----+----+----+----|
|  36|    |    |    |    |    |    |    |    |
|    |    |    |    |    |    |    |    |    |
\----+----+----+----+----+----+----+----+----/