3 4 9
5
2 9 5 6 1 7
3 1 5 2
8
8 2 4 6
1 7 3 8 5 4
9
3 5 7
19-04-2019.......dificil 19-04-2019
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7 8 3 2 4 5 6 9 1
4 1 6 3 9 7 5 8 2
2 9 5 6 1 8 3 4 7
3 4 1 5 6 9 2 7 8
6 2 7 4 8 1 9 3 5
9 5 8 7 3 2 4 1 6
1 6 2 9 7 3 8 5 4
5 7 9 8 2 4 1 6 3
8 3 4 1 5 6 7 2 9
5=>(1,6) | 8=>(3,6) | 4=>(3,8) | 3=>(3,7) | 5=>(5,9) | 9=>(7,4) | 9=>(5,7) | 9=>(9,9) |

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

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

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

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

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

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