I have taken as many freely available tarsia puzzles as I could find from the internet, sorted them by topic and deleted any duplicates. Please check the answers before printing, I have made some corrections but I haven't checked all the puzzles and can't guarantee there won't be the occasional error.
There are 272 puzzles in the zip folder.
You will need Tarsia software to open the files, that is free and downloadable here; http://www.mmlsoft.com/index.php/products/tarsia
If you have never seen Tarsia, here is a tutorial; https://www.youtube.com/watch?v=Gp2L7t7yaKk
Crand made them freely available (I don't know who you are, sorry!)