2 8 1 5 5 1 6 7 4 9 8 1 9 2 4 1 7 3 6 3 1 2 3 4 5 1 7 8 9 07-01-2019.......hard 07-01-2019 www.daily-sudoku-puzzle.com

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

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