8 9 8 7 4 1 4 3 2 9 3 4 5 1 3 8 6 9 1 4 8 2 9 5 7 6 16-08-2018.......hard 16-08-2018 www.daily-sudoku-puzzle.com

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

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