*-----------*

 |2..|...|.3.|

 |.43|2.9|..6|

 |.9.|7..|.1.|

 |---+---+---|

 |..8|9..|...|

 |9.5|...|1.7|

 |...|..3|9..|

 |---+---+---|

 |.5.|..2|.7.|

 |3..|8.7|64.|

 |.6.|...|..5|

 *-----------*