8 5 2 4
9 7
5 1 3
6 4
3 9 7 5 8 1
7 2
2 1 4
9 7
6 4 8 9
07-12-2017.......difficile 07-12-2017
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1 7 3 9 8 6 5 2 4
2 6 9 4 5 3 8 1 7
8 5 4 2 7 1 9 3 6
5 8 2 6 1 9 4 7 3
3 9 6 7 4 5 2 8 1
4 1 7 8 3 2 6 9 5
7 2 5 1 6 8 3 4 9
9 3 1 5 2 4 7 6 8
6 4 8 3 9 7 1 5 2
7=>(1,2) | 7=>(4,8) | 4=>(5,5) | 7=>(7,1) | 7=>(9,6) | 1=>(1,1) | 7=>(3,5) | 4=>(3,3) |

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

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

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

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

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

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