7 5 8 4 2 3
2 6
3 4 1 7
6 9
5 8
7 5
5 7 6 9
8 1
2 6 9 3 5 8
15-12-2020.......difficile 15-12-2020
www.daily-sudoku-puzzle.com

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

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

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

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

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

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

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