Tarsia news!

"Is it possible to change to a different shape puzzle without losing all your inputted data?"

This is a question I have been asked about Tarsia, and up to now I have said No.  But I have just discovered how to do it!

On your puzzle, go to File > Properties.  You will then see this dialogue box:

Click on the "Change document type" button and it'll give you all the possible formats that you can change your puzzle into.  I've just changed a Standard Rectangular Puzzle into an Extended Rectangular Puzzle and all my typed-in pairs are still there.

It's an irreversible change so I'd recommend saving your original puzzle first.

Good news!