SUDOKU

Write a number from 1 to 9 into each empty square in the grid so that every number from 1 to 9 appears exactly once in each horizontal row, each vertical column, and each 3×3 block.
739      68  
1            95
8      9      1
      9  5      
    4  7  5    
      2  4      
4      3      6
91            7
  63      24  
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