1 7 9 3 5 8 6 2 4 8 3 9 1 8 4 1 4 5 2 9 8 1 8 4 6 4 3 2 7 5 02-12-2016.......hard 02-12-2016 www.daily-sudoku-puzzle.com

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

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