1 6 8 9 4 2 1 7 3 2 4 9 7 6 5 3 2 1 4 7 3 7 8 5 8 2 9 1 24-12-2020.......dificil 24-12-2020 www.daily-sudoku-puzzle.com

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

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