8 1
4 5 2 7
2 7 3
6 3 9 1 7
2 3 9 5
1 4 2 5 6
6 3 8
7 8 4 3
1 2
28-12-2018.......difficile 28-12-2018
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8 2 7 9 5 4 3 6 1
3 4 5 1 8 6 2 7 9
6 1 9 2 7 3 5 4 8
5 8 6 3 9 1 7 2 4
2 3 4 8 6 7 1 9 5
7 9 1 4 2 5 6 8 3
4 5 2 6 3 8 9 1 7
9 7 8 5 1 2 4 3 6
1 6 3 7 4 9 8 5 2
7=>(1,3) | 3=>(2,1) | 7=>(6,1) | 1=>(3,2) | 9=>(3,3) | 2=>(4,8) | 1=>(5,7) | 4=>(5,3) |

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

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

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

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

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

5=>(8,4) |