3 2 6
4 1 8 3
5 4
4 7 9
3 8 5 6
6 3 1
9 2
2 1 3 7
8 1 2
14-05-2020.......difficile 14-05-2020
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9 8 1 3 2 4 7 5 6
4 2 7 6 5 9 1 8 3
3 6 5 1 8 7 9 4 2
1 5 8 4 7 6 3 2 9
7 3 2 8 9 5 4 6 1
6 4 9 2 3 1 8 7 5
5 9 4 7 6 3 2 1 8
2 1 3 5 4 8 6 9 7
8 7 6 9 1 2 5 3 4
4=>(1,6) | 3=>(3,1) | 1=>(3,4) | 2=>(3,9) | 6=>(4,6) | 2=>(6,4) | 9=>(5,5) | 3=>(7,6) |

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

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

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

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

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

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