3 9 4 2
4 7
5 1 9 7 6
3 8 1 9
2 8
5 2 4 1
3 5 6 1 4
7 3
9 2 7 8
12-05-2017.......medium 12-05-2017
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7 3 9 5 8 6 4 2 1
8 2 6 4 1 7 5 3 9
5 1 4 3 9 2 8 7 6
4 6 3 8 7 1 9 5 2
2 7 1 6 5 9 3 4 8
9 8 5 2 3 4 1 6 7
3 5 7 9 6 8 2 1 4
1 4 8 7 2 3 6 9 5
6 9 2 1 4 5 7 8 3
7=>(1,1) | 9=>(6,1) | 2=>(2,2) | 4=>(3,3) | 3=>(3,4) | 2=>(3,6) | 2=>(4,9) | 9=>(7,4) |

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

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

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

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

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

9=>(8,8) |