4 8 2 7
1 6 9
2 5
5 1 3
4 7
3 4 1
6 5
3 7 2
9 2 6 8
26-05-2017.......hard 26-05-2017
www.daily-sudoku-puzzle.com

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

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

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

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

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

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

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