6 9 8 7 8 2 5 1 8 5 2 9 4 9 5 8 6 4 3 9 2 9 8 1 3 7 6 9 5 4 3 8 6 1 2 3 21-07-2017.......facile 21-07-2017 www.daily-sudoku-puzzle.com

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

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