*-----------*
|.53|..6|...|
|..9|.8.|.32|
|..7|..9|..4|
|---+---+---|
|5..|..8|.6.|
|9.1|...|8.3|
|.8.|1..|..5|
|---+---+---|
|3..|9..|4..|
|61.|.3.|5..|
|...|5..|32.|
*-----------*