Online Shape Sudoku

Place the shapes in the grid so that every row, every column, and each of the nine 3x3 square contains only one occurence of each of the shapes. This version began as an example of what not to do for putting picture sudoku on your own site, but hey, it's a challenge, and you wouldn't shrink back before a challenge would you?. It is rather harder than any of the other versions below.

All puzzles here are solvable and have only one solution.

Something Easier?
   Picture Sudoku (Fruit)
 
   Pictures of Numbers
 
   Animal Sudoku
 
   Flower Sudoku
 
   Online Sudoku Number Puzzle
 
Use your own pictures
 
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