1 3 2 8
5 3
6 9 2 5
8 6 7 2
1 3 5 6
7 8 4 5
4 7
9 5 8 4
20-08-2018.......hard 20-08-2018
www.daily-sudoku-puzzle.com

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

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

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

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

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

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

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