3 5 6 8
1 8 7 9
5 7 8 9
4 1 3 5 6
3 9
8 2 7 4 3
4 9 7 8
1 7 5 2
1 4 2 6
26-07-2019.......facile 26-07-2019
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9 4 3 2 5 6 8 1 7
1 8 6 7 4 9 3 2 5
2 5 7 3 8 1 9 6 4
4 1 9 8 3 2 5 7 6
7 3 5 6 1 4 2 9 8
8 6 2 9 7 5 1 4 3
6 2 4 5 9 3 7 8 1
3 9 8 1 6 7 4 5 2
5 7 1 4 2 8 6 3 9
2=>(1,4) | 4=>(1,2) | 6=>(2,3) | 5=>(2,9) | 4=>(2,5) | 7=>(9,2) | 1=>(3,6) | 9=>(4,3) |

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

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

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

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

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