8 1 4 6 3
8 5
6 2 7
9 5 8 4
7 9 3
1 3 7
2 3 1
3 7 2
9 5
19-04-2014.......difficile 19-04-2014
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2 5 8 9 1 7 4 6 3
7 9 4 8 6 3 2 5 1
3 6 1 4 5 2 9 8 7
6 3 9 5 7 8 1 2 4
4 7 5 1 2 9 6 3 8
8 1 2 6 3 4 5 7 9
9 2 3 7 4 6 8 1 5
5 4 6 3 8 1 7 9 2
1 8 7 2 9 5 3 4 6
2=>(1,1) | 7=>(1,6) | 3=>(4,2) | 3=>(2,6) | 5=>(3,5) | 3=>(3,1) | 2=>(2,7) | 1=>(4,7) |

7=>(4,5) | 2=>(4,8) | 1=>(5,4) | 1=>(8,6) | 3=>(9,7) | 2=>(9,4) | 9=>(1,4) | 5=>(1,2) |

6=>(4,1) | 6=>(2,5) | 1=>(3,3) | 1=>(2,9) | 7=>(7,4) | 2=>(5,5) | 2=>(6,3) | 1=>(9,1) |

4=>(3,4) | 6=>(6,4) | 6=>(8,3) | 6=>(7,6) | 7=>(2,1) | 5=>(5,3) | 4=>(6,6) | 6=>(5,7) |

7=>(9,3) | 5=>(8,1) | 6=>(9,9) | 8=>(6,1) | 9=>(7,1) | 4=>(2,3) | 9=>(2,2) | 4=>(5,1) |

8=>(5,9) | 4=>(7,5) | 5=>(7,9) | 9=>(8,8) | 9=>(6,9) | 8=>(3,8) | 9=>(3,7) | 8=>(8,5) |

5=>(6,7) | 8=>(7,7) | 4=>(8,2) | 4=>(9,8) | 8=>(9,2) |