1 6 5 4
9 5 1
4 2 3 9
5 8
4 6
7 2
9 8 6 3
5 7 8
6 1 4 2
23-06-2017.......difficile 23-06-2017
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1 7 3 6 5 9 8 2 4
2 9 6 4 7 8 5 1 3
8 4 5 1 2 3 7 6 9
3 6 1 7 9 5 2 4 8
5 2 4 3 8 1 6 9 7
7 8 9 2 4 6 3 5 1
9 1 2 8 6 7 4 3 5
4 5 7 9 3 2 1 8 6
6 3 8 5 1 4 9 7 2
9=>(1,6) | 4=>(8,1) | 7=>(1,2) | 1=>(3,4) | 5=>(9,4) | 6=>(6,6) | 4=>(7,7) | 5=>(7,9) |

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

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

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

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

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

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