1 8 5 3 6 4 7 4 8 3 1 6 9 8 6 5 7 3 1 2 4 9 2 1 4 8 7 4 1 5 9 18-06-2019.......difficile 18-06-2019 www.daily-sudoku-puzzle.com

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