*-----------*
|...|5.8|2.9|
|35.|6..|...|
|..8|..4|...|
|---+---+---|
|.94|...|..6|
|.3.|9.5|.8.|
|6..|...|95.|
|---+---+---|
|...|2..|4..|
|...|..1|.92|
|8.9|4.3|...|
*-----------*