2 1 6 5 2 4 8 9 3 3 8 9 4 8 1 7 8 6 2 6 4 2 1 9 7 5 2 8 26-07-2017.......hard 26-07-2017 www.daily-sudoku-puzzle.com

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

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