*-----------*
|4.9|..1|..3|
|.6.|...|...|
|..7|.5.|24.|
|---+---+---|
|7..|56.|..8|
|...|932|...|
|6..|.78|..5|
|---+---+---|
|.14|.2.|8..|
|...|...|.3.|
|2..|8..|4.1|
*-----------*