5 8 1 9
6 1 7 3
4 2
4 9 6 8 5
5 4 2 7 3
3 4
1 8 9 6
4 1 6 5
26-06-2017.......dificil 26-06-2017
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2 5 3 8 7 1 4 9 6
8 6 1 2 9 4 7 3 5
4 7 9 6 5 3 8 1 2
1 3 4 9 6 8 5 2 7
7 8 2 3 1 5 6 4 9
6 9 5 4 2 7 3 8 1
3 2 6 5 8 9 1 7 4
5 1 8 7 4 2 9 6 3
9 4 7 1 3 6 2 5 8
6=>(1,9) | 5=>(8,1) | 6=>(3,4) | 4=>(1,7) | 5=>(2,9) | 3=>(4,2) | 1=>(5,5) | 6=>(7,3) |

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

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

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

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

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

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