9 2 7 4 3 9 4 6 5 9 6 7 9 8 7 3 4 6 7 1 8 3 1 9 2 5 1 5 9 4 07-04-2016.......hard 07-04-2016 www.daily-sudoku-puzzle.com

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

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