3 9 5 4 7 2
5 9
2 4
3 6 2 8
5 4
8 3 9 1
8 9
4 5
7 6 4 1 2 3
10-02-2018.......hard 10-02-2018
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3 6 9 5 8 4 7 1 2
4 1 5 2 6 7 9 3 8
8 2 7 9 1 3 6 4 5
1 7 3 6 4 2 8 5 9
5 9 2 1 7 8 3 6 4
6 4 8 3 5 9 1 2 7
2 8 1 7 3 5 4 9 6
9 3 4 8 2 6 5 7 1
7 5 6 4 9 1 2 8 3
3=>(8,2) | 5=>(9,2) | 5=>(3,9) | 9=>(5,2) | 5=>(7,6) | 9=>(4,9) | 4=>(7,7) | 8=>(9,8) |

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

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

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

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

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

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