7 4 2 3
6 9 8 7
4 1
3 8 9 7
2 5
9 6 7 2
1 8
8 2 5 1
5 1 4 7
11-10-2019.......fiendish 11-10-2019
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7 9 5 4 1 2 6 8 3
1 6 2 9 3 8 5 7 4
8 3 4 5 7 6 1 2 9
6 5 3 8 2 9 7 4 1
2 7 8 3 4 1 9 6 5
4 1 9 6 5 7 2 3 8
9 4 1 7 6 3 8 5 2
3 8 7 2 9 5 4 1 6
5 2 6 1 8 4 3 9 7
2=>(4,5) | 5=>(3,4) | 3=>(5,4) | 8=>(9,5) | 1=>(5,6) | 5=>(7,8) | 7=>(3,5) | 5=>(4,2) |

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

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

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

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

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

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