1 7 2 8
3 2
9 2 6 5
8 9 7 2
8 5 3 1
5 9 3 4
4 1
6 8 1 9
06-06-2018.......hard 06-06-2018
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1 6 5 7 9 3 4 2 8
4 3 8 1 2 5 9 6 7
9 2 7 4 8 6 1 5 3
8 1 9 3 7 2 6 4 5
5 4 3 6 1 9 7 8 2
2 7 6 8 5 4 3 9 1
7 5 1 9 6 8 2 3 4
3 9 2 5 4 7 8 1 6
6 8 4 2 3 1 5 7 9
9=>(8,2) | 3=>(3,9) | 3=>(4,4) | 3=>(9,5) | 1=>(7,3) | 4=>(9,3) | 8=>(5,8) | 7=>(9,8) |

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

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

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

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

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

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