2 1 3
5 8 4 7
4 3
2 6 7 1
1 2
8 6 3 5
8 2
7 9 1 5
4 5 6
11-12-2016.......medium 11-12-2016
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2 4 9 7 1 5 6 8 3
5 8 3 6 2 9 1 4 7
1 7 6 4 8 3 5 9 2
9 2 4 5 6 8 3 7 1
3 5 1 9 7 4 2 6 8
8 6 7 2 3 1 4 5 9
6 1 5 8 9 2 7 3 4
7 9 2 3 4 6 8 1 5
4 3 8 1 5 7 9 2 6
3=>(2,3) | 1=>(2,7) | 5=>(3,7) | 6=>(5,8) | 4=>(8,5) | 2=>(6,4) | 2=>(8,3) | 2=>(3,9) |

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

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

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

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

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

4=>(6,7) | 9=>(6,9) | 7=>(7,7) | 4=>(7,9) | 6=>(7,1) |