2 8 1 4 3 9 7 5 7 1 3 2 9 4 1 5 1 7 6 4 9 3 4 1 9 6 8 1 20-03-2016.......hard 20-03-2016 www.daily-sudoku-puzzle.com

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

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