6 8 1 7 3 2 4 8 7 2 1 3 4 9 6 9 5 6 7 8 2 3 4 3 8 2 5 11-07-2017.......hard 11-07-2017 www.daily-sudoku-puzzle.com

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

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