1 2 9
2 4 7 8 6
6 3 4 1 7
4 7 1
2 9 5 7
2 5 3
8 2 9 6 5
1 8 7 2 9
3 1 4
23-12-2018.......facile 23-12-2018
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5 1 7 6 3 2 8 9 4
2 9 4 7 1 8 3 5 6
6 8 3 5 9 4 1 2 7
4 5 8 3 7 1 9 6 2
3 2 9 4 8 6 5 7 1
7 6 1 2 5 9 4 8 3
8 7 2 9 4 3 6 1 5
1 4 5 8 6 7 2 3 9
9 3 6 1 2 5 7 4 8
3=>(5,1) | 7=>(6,1) | 9=>(9,1) | 1=>(2,5) | 3=>(2,7) | 5=>(3,4) | 9=>(3,5) | 2=>(3,8) |

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

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

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

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

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