6 4
5 2
9 7 2 1 3 5
6 7
8 7 1 9
2 4
6 1 8 7 2 3
8 9
4 5
03-11-2016.......hard 03-11-2016
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2 3 1 6 5 4 8 9 7
4 8 5 9 7 3 2 1 6
9 7 6 2 8 1 4 3 5
1 6 9 5 4 8 3 7 2
8 4 7 3 2 6 1 5 9
5 2 3 7 1 9 6 4 8
6 1 4 8 9 7 5 2 3
7 5 8 1 3 2 9 6 4
3 9 2 4 6 5 7 8 1
5=>(1,5) | 6=>(3,3) | 9=>(9,2) | 8=>(3,5) | 9=>(7,5) | 2=>(4,9) | 5=>(7,7) | 9=>(1,8) |

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

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

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

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

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

7=>(9,7) | 1=>(1,3) | 2=>(1,1) | 3=>(9,1) | 2=>(9,3) |