2 5 7
6 8 7
1 4 9
7 2 4 1
5 6
8 1 3 2
7 6 8
4 9 3
4 2 5
04-09-2017.......difficile 04-09-2017
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4 9 2 6 5 7 1 3 8
3 1 6 8 9 4 7 5 2
5 7 8 1 3 2 6 4 9
6 3 7 2 8 5 4 9 1
2 5 9 7 4 1 8 6 3
8 4 1 9 6 3 2 7 5
7 6 5 3 1 8 9 2 4
1 2 4 5 7 9 3 8 6
9 8 3 4 2 6 5 1 7
6=>(4,1) | 7=>(3,2) | 2=>(8,2) | 2=>(3,6) | 2=>(5,1) | 5=>(4,6) | 4=>(7,9) | 4=>(2,6) |

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

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

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

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

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

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