3 2 7 6 1 9 7 3 6 6 5 7 5 4 6 8 1 4 9 9 8 7 2 8 1 5 6 9 24-07-2018.......hard 24-07-2018 www.daily-sudoku-puzzle.com

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

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