1 7 4 2 1 5 4 7 9 1 8 7 2 9 4 6 1 9 8 9 8 7 2 3 8 5 3 2 24-02-2019.......dificil 24-02-2019 www.daily-sudoku-puzzle.com

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

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