6 4 9 8
8 7
1 4 5
4 9
3 7 8 1 4 2
4 9
8 3 6
6 5
7 9 2 1
05-06-2018.......hard 05-06-2018
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2 3 5 1 6 7 4 9 8
4 6 8 9 3 5 2 1 7
9 1 7 2 8 4 3 5 6
1 2 6 4 7 3 9 8 5
3 7 9 8 5 1 6 4 2
8 5 4 6 2 9 1 7 3
5 8 1 3 4 2 7 6 9
6 4 3 7 9 8 5 2 1
7 9 2 5 1 6 8 3 4
1=>(1,4) | 8=>(3,5) | 9=>(5,3) | 5=>(5,5) | 6=>(5,7) | 4=>(9,9) | 6=>(2,2) | 6=>(3,9) |

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

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

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

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

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

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