2 8 1 6 9 7 8 3 1 5 8 9 7 4 6 3 2 4 1 8 9 7 5 1 6 4 5 8 3 27-07-2017.......hard 27-07-2017 www.daily-sudoku-puzzle.com

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

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