6 7 8 9
8 3 4 2
2 6
4 6 8 9
3 4
8 5 7 3
8 5
1 7 6 8
4 2 6 3
04-02-2016.......medium 04-02-2016
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6 4 7 2 5 1 8 3 9
9 8 1 3 6 4 5 2 7
2 5 3 8 7 9 4 1 6
7 2 4 6 3 8 9 5 1
5 3 6 9 1 2 7 4 8
1 9 8 5 4 7 3 6 2
8 6 9 4 2 3 1 7 5
3 1 5 7 9 6 2 8 4
4 7 2 1 8 5 6 9 3
3=>(1,8) | 4=>(1,2) | 3=>(8,1) | 3=>(3,3) | 6=>(2,5) | 4=>(3,7) | 3=>(4,5) | 4=>(7,4) |

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

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

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

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

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

2=>(5,6) | 7=>(5,7) | 2=>(6,9) |