9 2 3
5
1 5 2 9 8 6
3 1 8 4
1
6 4 1 5
8 6 5 9 7 2
3
7 9 3
13-04-2018.......hard 13-04-2018
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4 6 9 5 2 7 8 3 1
7 3 8 1 4 6 5 2 9
1 5 2 9 8 3 7 4 6
3 9 1 8 5 2 4 6 7
5 4 7 6 1 9 2 8 3
2 8 6 7 3 4 1 9 5
8 1 4 3 6 5 9 7 2
9 2 3 4 7 1 6 5 8
6 7 5 2 9 8 3 1 4
5=>(1,4) | 3=>(2,2) | 2=>(2,8) | 3=>(3,6) | 4=>(3,8) | 7=>(3,7) | 4=>(7,3) | 5=>(4,5) |

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

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

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

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

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

2=>(9,4) | 4=>(8,4) | 8=>(8,9) | 4=>(9,9) |