5 9 4 8 7 1 9 3 6 5 9 2 6 8 6 7 1 2 1 2 7 3 2 6 8 6 1 4 28-12-2016.......hard 28-12-2016 www.daily-sudoku-puzzle.com

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

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