3 9
2 7 9 5
5 8 2 7
8 4 5 1
1 9
7 8 3 6
8 4 3 5
9 3 6 1
2 4
26-05-2018.......medium 26-05-2018
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4 7 3 2 5 8 9 6 1
6 2 1 7 3 9 8 5 4
5 8 9 1 6 4 3 2 7
2 6 8 4 9 5 1 7 3
1 3 4 6 7 2 5 8 9
9 5 7 8 1 3 6 4 2
8 4 6 9 2 1 7 3 5
7 9 5 3 4 6 2 1 8
3 1 2 5 8 7 4 9 6
7=>(8,1) | 9=>(3,3) | 5=>(6,2) | 3=>(3,7) | 5=>(8,3) | 7=>(4,8) | 1=>(6,5) | 4=>(6,8) |

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

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

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

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

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

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