1 8 7 3
5
6 4 2 8
8 9 2 6
8 5
1 9 2 5
1 3 6 5
3
4 7 1 9
05-12-2017.......medium 05-12-2017
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6 1 2 5 8 7 9 3 4
5 8 4 9 3 2 7 6 1
7 9 3 1 6 4 5 2 8
8 5 9 3 2 1 6 4 7
4 2 6 8 7 5 3 1 9
3 7 1 4 9 6 2 8 5
1 3 8 6 5 9 4 7 2
9 6 7 2 4 8 1 5 3
2 4 5 7 1 3 8 9 6
3=>(2,5) | 5=>(4,2) | 7=>(5,5) | 4=>(8,5) | 6=>(6,6) | 8=>(6,8) | 3=>(5,7) | 9=>(7,6) |

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

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

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

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

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

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