6 4
3 1 2 7
9 2 8
4 2 3 9
5 6
8 5 3 7
1 7 4
4 1 9 2
8 5
17-10-2020.......hard 17-10-2020
www.daily-sudoku-puzzle.com

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

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

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

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

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

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

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