6 7 8 4
8 4
3 2
5 2 7 1
6 4 9 8
1 5 4 3
4 8
3 5
3 1 2 6
03-11-2017.......medium 03-11-2017
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6 5 3 7 2 8 1 9 4
2 1 8 9 6 4 3 7 5
4 9 7 5 3 1 6 2 8
5 2 4 8 7 3 9 6 1
7 3 6 4 1 9 8 5 2
1 8 9 2 5 6 7 4 3
9 4 1 6 8 5 2 3 7
8 6 2 3 4 7 5 1 9
3 7 5 1 9 2 4 8 6
4=>(3,1) | 7=>(5,1) | 8=>(8,1) | 6=>(8,2) | 8=>(3,9) | 4=>(4,3) | 8=>(4,4) | 8=>(6,2) |

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

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

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

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

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

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