5 2 9 3 2 4 8 6 7 1 3 5 8 9 7 9 4 7 2 7 6 1 4 6 9 8 16-12-2010.......hard 16-12-2010 www.daily-sudoku-puzzle.com

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

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