2 5 7 3
7 8
8 6 1
8 7 4
4 6
2 6 1
9 2 4
3 2
4 5 9 8
22-09-2018.......difficile 22-09-2018
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2 4 6 1 8 5 7 9 3
7 5 1 3 2 9 8 6 4
3 8 9 6 4 7 2 1 5
9 6 2 8 7 4 5 3 1
8 1 4 5 9 3 6 2 7
5 3 7 2 6 1 4 8 9
1 9 8 7 5 2 3 4 6
6 7 3 4 1 8 9 5 2
4 2 5 9 3 6 1 7 8
8=>(1,5) | 9=>(3,3) | 7=>(3,6) | 2=>(4,3) | 8=>(8,6) | 2=>(9,2) | 9=>(1,8) | 2=>(5,8) |

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

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

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

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

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

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