5 6 2 4
3 9 1 5
4 7
7 6 4 8
3 6
9 8 2 3
7 9
5 4 9 6
9 2 8 3
17-07-2017.......dificil 17-07-2017
www.daily-sudoku-puzzle.com

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

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

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

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

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

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

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