4 8 3 9 3 7 6 7 5 3 1 9 6 6 2 9 9 6 4 2 1 8 4 9 4 5 4 9 5 01-08-2018.......hard 01-08-2018 www.daily-sudoku-puzzle.com

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

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