1 4 2 8 6
6 2 5
9 7 1
9 4
2 1
6 3
8 4 2
4 7 8
9 1 7 5 3
18-02-2021.......dificil 18-02-2021
www.daily-sudoku-puzzle.com

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

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

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

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

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

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

3=>(7,1) | 8=>(3,1) | 8=>(4,3) | 7=>(4,1) | 7=>(7,3) |