5 1 2 3 7
6 3 1
3 5 9
5 6
4 9
2 8
7 3 8
8 7 5
1 9 2 5 4
09-08-2020.......medium 09-08-2020
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5 9 4 8 1 2 3 6 7
6 3 8 7 9 4 5 1 2
7 2 1 6 3 5 4 9 8
3 5 7 1 2 8 6 4 9
8 1 6 4 7 9 2 5 3
9 4 2 5 6 3 7 8 1
4 7 5 3 8 1 9 2 6
2 8 3 9 4 6 1 7 5
1 6 9 2 5 7 8 3 4
9=>(1,2) | 5=>(2,7) | 2=>(3,2) | 6=>(9,2) | 5=>(7,3) | 5=>(6,4) | 8=>(9,7) | 5=>(5,8) |

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

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

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

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

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

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