6 8 9 5 4 3 8 7 2 1 4 6 7 8 6 3 5 4 6 9 2 7 4 1 9 8 6 02-01-2018.......hard 02-01-2018 www.daily-sudoku-puzzle.com

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

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