3 6 5 9
9 8 1 5
5 2 3
6 7
1 2 5 6
8 3
8 7 1
4 2 3 7
6 9 4 8
16-03-2018.......medium 16-03-2018
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8 3 7 6 4 5 1 9 2
9 4 2 8 3 1 6 7 5
6 5 1 7 2 9 4 3 8
3 9 6 4 5 8 7 2 1
1 2 4 3 9 7 8 5 6
5 7 8 1 6 2 3 4 9
2 8 3 5 7 6 9 1 4
4 1 9 2 8 3 5 6 7
7 6 5 9 1 4 2 8 3
4=>(1,5) | 6=>(3,1) | 3=>(2,5) | 1=>(8,2) | 9=>(3,6) | 7=>(2,8) | 5=>(7,4) | 6=>(7,6) |

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

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

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

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

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

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