7 1 3 3 4 1 2 6 3 1 6 5 4 4 8 5 8 2 9 8 6 4 4 8 7 3 5 6 25-07-2018.......hard 25-07-2018 www.daily-sudoku-puzzle.com

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

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