4 5 3 9
5 8 1 3 6
2 7 6
5 6 3 8
1 2 9
3 5 4 7 1
2 4 8 9
22-05-2019.......difficile 22-05-2019
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1 6 7 4 5 2 8 3 9
5 8 4 9 1 3 7 2 6
9 3 2 6 7 8 5 1 4
4 2 9 8 3 7 1 6 5
7 5 6 1 9 4 3 8 2
8 1 3 2 6 5 4 9 7
6 7 5 3 2 1 9 4 8
3 9 8 5 4 6 2 7 1
2 4 1 7 8 9 6 5 3
3=>(3,2) | 2=>(5,9) | 9=>(5,5) | 5=>(6,6) | 1=>(4,7) | 1=>(3,8) | 5=>(9,8) | 5=>(7,3) |

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

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

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

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

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

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