3 8 1
1 4 8 7
4 5
4 6 2 7
1 4
9 7 8 1
5 9
8 2 6 3
2 8 5
04-06-2020.......difficile 04-06-2020
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3 2 7 8 1 6 9 5 4
1 9 5 2 4 3 8 7 6
8 4 6 7 9 5 3 1 2
4 5 1 3 8 9 6 2 7
2 6 3 1 7 4 5 8 9
9 7 8 6 5 2 4 3 1
6 1 4 5 3 7 2 9 8
5 8 2 9 6 1 7 4 3
7 3 9 4 2 8 1 6 5
8=>(3,1) | 8=>(4,5) | 7=>(5,5) | 8=>(7,9) | 5=>(8,1) | 8=>(5,8) | 2=>(5,1) | 9=>(5,9) |

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

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

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

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

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

3=>(2,6) | 2=>(2,4) | 3=>(9,2) | 6=>(6,4) | 2=>(6,6) |