2 1 8 2 3 9 7 8 5 1 4 2 5 3 7 8 9 1 6 4 1 2 3 8 4 3 9 7 11-05-2018.......hard 11-05-2018 www.daily-sudoku-puzzle.com

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

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