7 2 9
4 2 9
9 5 4
8 4 6
2 1 6 7
1 3 4
8 7 4
9 6 5
3 9 1
22-06-2018.......hard 22-06-2018
www.daily-sudoku-puzzle.com

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

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

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

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

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

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

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