8 5 4 7 7 5 8 9 6 8 1 5 4 9 7 3 2 3 4 1 9 3 2 6 5 9 3 8 7 8 6 3 2 5 1 6 21-06-2017.......facile 21-06-2017 www.daily-sudoku-puzzle.com

8 2 5 4 6 9 7 1 3 4 7 1 5 3 2 8 6 9 9 6 3 8 7 1 4 5 2 6 8 4 1 9 7 3 2 5 2 3 7 6 5 8 9 4 1 5 1 9 3 2 4 6 7 8 1 5 6 9 4 3 2 8 7 7 9 8 2 1 6 5 3 4 3 4 2 7 8 5 1 9 6

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