4 7 6 2 8 5 9 8 6 2 5 9 7 4 1 3 2 4 1 6 3 3 5 4 8 2 1 4 3 9 7 26-12-2016.......schwer 26-12-2016 www.daily-sudoku-puzzle.com

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