*-----------*
|86.|4..|..5|
|7..|.9.|.4.|
|...|67.|.9.|
|---+---+---|
|...|..3|2..|
|5.8|...|7.3|
|..3|2..|...|
|---+---+---|
|.8.|.29|...|
|.7.|.8.|..6|
|3..|..6|.19|
*-----------*