7 6 4
8 6 4 1
9 5 3
6 3 4
3 9
5 7 8
4 5 2
2 8 4 1
2 9 7
30-07-2020.......medium 30-07-2020
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2 3 7 6 9 8 4 1 5
8 6 5 3 4 1 2 7 9
9 1 4 5 2 7 8 3 6
6 7 9 8 3 2 1 5 4
4 8 3 1 5 6 9 2 7
5 2 1 9 7 4 3 6 8
3 4 8 7 1 5 6 9 2
7 9 6 2 8 3 5 4 1
1 5 2 4 6 9 7 8 3
4=>(5,1) | 4=>(3,3) | 5=>(2,3) | 3=>(2,4) | 2=>(3,5) | 5=>(5,5) | 9=>(1,5) | 3=>(6,7) |

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

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

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

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

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

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