5 8 4 9 5 1 7 6 4 7 2 3 9 9 4 6 4 7 8 3 5 2 8 9 2 1 5 4 04-01-2021.......hard 04-01-2021 www.daily-sudoku-puzzle.com

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

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