1 9 8 4 7
8 5 3 9
5 7
1 6 2 8
9 2 5 4
7 5
3 6 8 7
8 4 1 9 6
05-11-2017.......medium 05-11-2017
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6 1 9 8 2 4 5 3 7
2 7 8 5 3 9 1 4 6
4 5 3 7 1 6 2 8 9
3 4 1 9 7 5 6 2 8
7 8 6 1 4 2 3 9 5
9 2 5 6 8 3 4 7 1
1 6 4 2 9 7 8 5 3
5 9 2 3 6 8 7 1 4
8 3 7 4 5 1 9 6 2
5=>(1,7) | 2=>(1,5) | 6=>(1,1) | 3=>(1,8) | 5=>(8,1) | 8=>(5,2) | 1=>(3,5) | 6=>(3,6) |

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

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

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

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

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

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