online. You may have bought a premade puzzle or slaved in a word processing program with tons of text boxes and graphics to create your won. The Tarsia software just does this for you. It has an equation editor, which is amazing. You type in your questions and answers and the program creates a table with the problems/solutions, a puzzle to be printed out (mixed up pieces) and a solution puzzle (pieces put together). It's mind blowing really.
I have not found a way to upload these to google docs with out printing to pdf :( However, Mr. Barton has made lots of tarsia puzzles and uploaded them on his website.