9 5 8 6
4 3 5 2
8 6 1 3
3 9
5 7 1 2
1 7 2 5
4 8 3 7 1
26-10-2016.......difficile 26-10-2016
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3 9 7 1 5 2 8 4 6
8 6 1 4 7 3 9 5 2
5 4 2 6 9 8 3 1 7
7 8 6 5 2 1 4 3 9
2 1 4 3 8 9 7 6 5
9 5 3 7 6 4 1 2 8
6 3 5 8 1 7 2 9 4
1 7 9 2 4 5 6 8 3
4 2 8 9 3 6 5 7 1
1=>(1,4) | 5=>(4,4) | 6=>(9,6) | 5=>(9,7) | 4=>(1,8) | 2=>(9,2) | 1=>(3,8) | 6=>(3,4) |

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

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

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

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

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

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