*-----------*
|...|2..|..8|
|...|.95|2.7|
|...|..8|695|
|---+---+---|
|...|.76|.4.|
|8..|3.1|..9|
|.6.|52.|...|
|---+---+---|
|952|1..|...|
|6.1|95.|...|
|3..|..2|...|
*-----------*