2 5 1
8 9 3
7 8
1 6 5 3
2 8 1 6
7 6 9 4
9 8
4 1 7
4 6 2
13-01-2018.......medium 13-01-2018
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3 2 5 1 6 8 4 7 9
8 4 7 5 9 2 1 6 3
6 1 9 4 7 3 2 5 8
1 9 6 8 4 5 7 3 2
2 8 4 7 3 9 5 1 6
5 7 3 6 2 1 9 8 4
9 6 1 2 8 7 3 4 5
4 5 2 3 1 6 8 9 7
7 3 8 9 5 4 6 2 1
8=>(1,6) | 9=>(1,9) | 3=>(6,3) | 2=>(4,9) | 8=>(4,4) | 5=>(6,1) | 5=>(5,7) | 5=>(9,5) |

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

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

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

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

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

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