*-----------*
|.38|7..|1..|
|1..|...|7..|
|7..|..9|..3|
|---+---+---|
|.6.|.97|.4.|
|3..|.2.|..6|
|.1.|64.|.7.|
|---+---+---|
|5..|1..|..7|
|..3|...|..8|
|..1|..2|59.|
*-----------*