2 9
6 7 5
8 6 7
3 4 8 2
5 2 7 1
8 3 5 4
6 3 2
4 9 8
1 6
31-07-2020.......hard 31-07-2020
www.daily-sudoku-puzzle.com

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

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

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

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

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

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

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