5 9 1 6
4 3 7 8
3 4 1
3 9
5 6 8 2
8 6
4 8 2
6 1 5 4
1 2 4 7
02-10-2020.......medium 02-10-2020
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8 5 7 9 2 1 4 6 3
4 9 1 3 6 7 2 5 8
2 3 6 5 4 8 7 1 9
1 2 3 8 5 6 9 4 7
5 6 4 7 3 9 1 8 2
9 7 8 4 1 2 6 3 5
7 4 9 6 8 3 5 2 1
6 8 2 1 7 5 3 9 4
3 1 5 2 9 4 8 7 6
4=>(1,7) | 2=>(1,5) | 8=>(1,1) | 1=>(2,3) | 8=>(8,2) | 4=>(5,3) | 3=>(1,9) | 7=>(1,3) |

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

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

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

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

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

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