5 1 7 1 6 2 4 8 1 8 9 5 1 4 7 8 7 3 1 6 7 4 3 9 5 3 4 8 2 14-11-2020.......hard 14-11-2020 www.daily-sudoku-puzzle.com

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

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