9 6 8 2 4 8 1 3 7 3 2 9 5 1 6 6 9 4 8 1 5 2 9 1 1 5 3 4 1 8 7 19-06-2017.......hard 19-06-2017 www.daily-sudoku-puzzle.com

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

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