4 8
8 5 7
9 1 7 5
5 1 2 3
9 3
3 2 4 1
4 5 9 6
7 5 1
8 9
08-03-2017.......medium 08-03-2017
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7 2 6 5 4 9 8 1 3
8 5 3 6 1 2 4 7 9
4 9 1 7 3 8 5 2 6
9 8 5 1 6 7 2 3 4
1 4 7 9 2 3 6 8 5
6 3 2 8 5 4 1 9 7
3 1 4 2 7 5 9 6 8
2 7 9 4 8 6 3 5 1
5 6 8 3 9 1 7 4 2
5=>(1,4) | 5=>(9,1) | 4=>(3,1) | 9=>(8,3) | 1=>(1,8) | 2=>(5,5) | 8=>(7,9) | 2=>(3,8) |

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

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

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

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

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

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