5 1 6 8
8 4 5 1
6 2 4 9
3 9 5 2
2 1 7 4
8 1 2 7
5 6 8 3
6 2 4 7
9 2 7 6
14-01-2017.......facile 14-01-2017
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5 9 2 7 1 3 4 6 8
8 4 7 5 6 9 2 1 3
1 3 6 2 8 4 9 7 5
4 7 3 8 9 6 5 2 1
2 5 9 1 3 7 6 8 4
6 8 1 4 2 5 7 3 9
7 1 5 6 4 8 3 9 2
3 6 8 9 5 2 1 4 7
9 2 4 3 7 1 8 5 6
4=>(1,7) | 7=>(2,3) | 2=>(2,7) | 7=>(4,2) | 5=>(5,2) | 7=>(1,4) | 8=>(3,5) | 4=>(9,3) |

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

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

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

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

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