3 8 9 1
6 5 3 4
4 6 8 9
3 2 6 9
7 1 6 5
9 7 5 4
3 2 7 4
2 5 9 1
4 5 7 3
13-03-2017.......facile 13-03-2017
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3 2 8 9 7 4 1 5 6
9 6 7 5 1 2 3 8 4
5 4 1 6 3 8 2 9 7
4 5 3 8 2 6 9 7 1
7 1 2 4 9 3 8 6 5
6 8 9 7 5 1 4 3 2
1 3 6 2 8 7 5 4 9
2 7 5 3 4 9 6 1 8
8 9 4 1 6 5 7 2 3
6=>(1,9) | 4=>(4,1) | 9=>(2,1) | 8=>(2,8) | 9=>(9,2) | 3=>(3,5) | 2=>(5,3) | 6=>(7,3) |

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

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

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

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

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