9 4 5 8
7 5
2 1 7
8 5 6 1
2 9
3 8 7 6
4 9 3
1 4
7 9 6 8
18-12-2018.......difficile 18-12-2018
www.daily-sudoku-puzzle.com

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

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

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

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

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

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

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