7 9 6
2 5 4 8
1 7
8 4 5
1 9
4 3 6
8 9
1 6 8 2
2 3 1
14-09-2009.......difficile 14-09-2009
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7 8 3 1 9 5 2 6 4
2 5 9 4 6 3 7 1 8
4 6 1 2 8 7 3 5 9
8 4 6 3 5 9 1 2 7
3 1 7 6 2 8 4 9 5
5 9 2 7 4 1 8 3 6
6 7 5 8 1 2 9 4 3
1 3 4 9 7 6 5 8 2
9 2 8 5 3 4 6 7 1
9=>(2,3) | 9=>(3,9) | 7=>(4,9) | 7=>(8,5) | 6=>(9,7) | 8=>(9,3) | 6=>(2,5) | 7=>(2,7) |

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

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

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

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

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

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