2 7 9 4
6 9 2 8
1 8 6 2
2 5 1 7 9
8 2
7 9 5 3 4
6 3 8 5
9 4 7 3
3 6 2 9
22-04-2018.......facile 22-04-2018
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5 3 2 1 7 9 4 6 8
6 9 7 2 4 8 3 1 5
4 1 8 5 6 3 2 9 7
2 5 4 3 1 6 7 8 9
3 8 1 4 9 7 5 2 6
7 6 9 8 5 2 1 3 4
9 4 6 7 3 1 8 5 2
1 2 5 9 8 4 6 7 3
8 7 3 6 2 5 9 4 1
3=>(1,2) | 9=>(7,1) | 7=>(2,3) | 3=>(2,7) | 4=>(2,5) | 1=>(2,8) | 6=>(6,2) | 2=>(8,2) |

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

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

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

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

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