1 4 9 3
5 8
6 7 2 4
8 4 5 7
9 3 1 5
9 8 5 6
9 2
5 8 1 7
28-07-2020.......medium 28-07-2020
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1 2 8 4 6 5 7 9 3
4 5 3 7 8 9 6 1 2
6 7 9 3 1 2 5 4 8
8 3 4 1 5 7 2 6 9
9 1 5 6 2 8 3 7 4
7 6 2 9 3 4 1 8 5
2 9 1 8 7 3 4 5 6
3 4 7 5 9 6 8 2 1
5 8 6 2 4 1 9 3 7
2=>(1,2) | 4=>(2,1) | 4=>(8,2) | 1=>(3,5) | 9=>(2,6) | 9=>(3,3) | 5=>(5,3) | 4=>(6,6) |

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

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

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

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

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

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