Each of these online jigsaw puzzles is cut into 48 classic pieces, but after you get to the puzzle you may change the number of pieces and also the shape of pieces by clicking on the "Shapes" button on the left of the puzzle.  There are many different puzzle cuts that you can choose, from 6 to over 200 pieces.

     Also, If pieces get hidden behind the puzzle as you are solving it, click on the "Shuffle" button to bring them to the top.

Note: Java must be enabled on your browser for the puzzles to work.