6 8 7 9 9 3 7 5 1 7 1 4 3 8 8 6 7 1 5 8 3 9 2 7 7 5 3 4 21-08-2017.......dificil 21-08-2017 www.daily-sudoku-puzzle.com

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

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