4 2 8 7 1 8 5 8 9 4 2 5 3 4 3 7 6 3 5 6 1 7 2 1 7 3 6 9 1 20-10-2016.......hard 20-10-2016 www.daily-sudoku-puzzle.com

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

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