4 2 8 6 1 7 9 7 5 6 7 9 2 7 8 1 1 3 4 7 1 6 2 5 5 6 4 8 3 9 17-03-2016.......hard 17-03-2016 www.daily-sudoku-puzzle.com

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

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