4 2 7
6 5 3
8 1 5 9
5 8 6 4
5
3 8 2 1
1 5 9 3
7 9 2
8 4 7
02-04-2017.......easy 02-04-2017
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9 5 4 2 3 7 1 6 8
2 6 7 1 8 9 5 3 4
8 1 3 4 6 5 9 7 2
5 9 8 6 2 1 3 4 7
1 4 2 7 5 3 6 8 9
7 3 6 9 4 8 2 5 1
6 8 1 5 7 2 4 9 3
4 7 9 3 1 6 8 2 5
3 2 5 8 9 4 7 1 6
5=>(1,2) | 1=>(5,1) | 8=>(7,2) | 5=>(9,3) | 3=>(4,7) | 5=>(6,8) | 7=>(7,5) | 5=>(8,9) |

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

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

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

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

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

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