*-----------*
|.9.|...|...|
|...|947|1..|
|...|2.3|7.4|
|---+---+---|
|97.|..4|..8|
|8..|...|..3|
|6..|8..|.75|
|---+---+---|
|4.9|3.2|...|
|..8|569|...|
|...|...|.5.|
*-----------*