Baseball Jigsaw Puzzle To position a puzzle piece, click and hold with your left mouse button and move it. When you place two correct pieces together, they will automatically join and the "seam" will disappear. Once two or more pieces are joined together, the entire joined piece can be moved. When the puzzle is completed, you will automatically be returned to the Sports Fun page. (If you don't have a popup blocker installed, you will also see a popup window that is controlled by Yavsoft.com - the maker of this jigsaw puzzle software.)