5 7 4 2 9
4 7
2 9 6
7 9 3
6 1 5
7 6 1
2 8 3
8 9
4 1 2 7 6
26-07-2019.......dificil 26-07-2019
www.daily-sudoku-puzzle.com

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

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

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

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

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

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

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