4 2 8 3 4 9 4 6 5 3 7 4 6 9 4 5 9 5 8 1 2 7 1 9 6 8 5 3 24-07-2017.......hard 24-07-2017 www.daily-sudoku-puzzle.com

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

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