5 2 8 6
2 6 5 8
4 7 9 2 5
2 6 5 8
3 8 9
1 3 9 6
7 9 1 8 3
6 9 1 4
3 8 7 2
14-02-2021.......facile 14-02-2021
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9 1 5 2 7 8 6 3 4
3 2 6 9 5 4 7 8 1
4 8 7 1 3 6 9 2 5
2 7 9 6 4 5 3 1 8
6 3 4 7 8 1 5 9 2
1 5 8 3 2 9 4 7 6
7 9 1 4 6 2 8 5 3
8 6 2 5 9 3 1 4 7
5 4 3 8 1 7 2 6 9
1=>(1,2) | 9=>(1,1) | 6=>(5,1) | 8=>(8,1) | 5=>(9,1) | 8=>(3,2) | 1=>(3,4) | 9=>(2,4) |

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

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

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

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

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