5 4 9 8
1 5 3 6
9 3
6 8 2 4
2 7
8 3 7 6
1 7
8 9 1 3
9 6 5 2
01-01-2017.......hard 01-01-2017
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5 6 3 4 2 9 1 7 8
7 1 4 5 8 3 2 6 9
8 2 9 7 1 6 3 4 5
1 7 6 8 9 2 4 5 3
2 3 5 1 6 4 9 8 7
4 9 8 3 5 7 6 2 1
3 5 1 2 4 8 7 9 6
6 8 2 9 7 1 5 3 4
9 4 7 6 3 5 8 1 2
1=>(5,4) | 7=>(3,4) | 2=>(7,4) | 2=>(6,8) | 3=>(4,9) | 5=>(8,7) | 3=>(7,1) | 5=>(5,3) |

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

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

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

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

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

4=>(2,3) | 4=>(9,2) | 7=>(9,3) |