7 1 5 2 5 8 9 3 1 1 9 7 4 8 6 2 7 4 9 6 9 5 3 4 8 9 2 1 07-06-2018.......hard 07-06-2018 www.daily-sudoku-puzzle.com

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

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