1 9 5 4 3 7 2 4 5 9 6 9 8 2 8 4 3 1 2 7 9 6 3 1 8 5 1 2 12-09-2017.......hard 12-09-2017 www.daily-sudoku-puzzle.com

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

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