6 7 5 3 9 7 1 5 6 8 8 3 7 2 4 3 5 6 8 1 6 3 7 2 1 4 5 2 6 7 30-08-2017.......hard 30-08-2017 www.daily-sudoku-puzzle.com

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

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