1 5
1 6 9
4 7 9 6
1 6 8 3
3 1
8 9 4 2
5 3 1 4
3 7 2
8 9
07-11-2017.......medium 07-11-2017
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8 9 3 7 1 6 5 2 4
1 6 2 8 4 5 7 9 3
5 4 7 9 3 2 6 8 1
4 5 1 6 2 9 8 3 7
7 2 6 3 8 1 4 5 9
3 8 9 5 7 4 2 1 6
9 7 5 2 6 3 1 4 8
6 3 4 1 5 8 9 7 2
2 1 8 4 9 7 3 6 5
6=>(1,6) | 5=>(3,1) | 1=>(9,2) | 3=>(6,1) | 8=>(5,5) | 9=>(4,6) | 9=>(8,7) | 3=>(9,7) |

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

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

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

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

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

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