6 5 8 7 3 9
9 8 2 7
1 5 6 8
3 4 1
4 2 3 6
5 1 3 2
7 2 9 1 4 5
13-04-2014.......medium 13-04-2014
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1 6 5 8 2 7 3 9 4
2 4 7 1 3 9 5 6 8
9 8 3 4 6 5 1 2 7
7 2 1 5 9 6 8 4 3
6 3 9 7 4 8 2 1 5
8 5 4 2 1 3 6 7 9
5 1 8 6 7 4 9 3 2
4 9 6 3 5 2 7 8 1
3 7 2 9 8 1 4 5 6
3=>(3,3) | 5=>(6,2) | 3=>(4,9) | 7=>(5,4) | 1=>(6,5) | 7=>(6,8) | 2=>(5,7) | 2=>(1,5) |

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

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

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

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

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

1=>(8,9) | 8=>(8,8) |