ref: 11c1447eac7698f01c2a00764c2b1a900a9d6a90
parent: f967bfa87b6ea08434501558e0c41184fdce333d
author: Michael Quevillon <mquevill@nd.edu>
date: Sun Apr 3 09:02:30 EDT 2022
Solo: Set max difficulty for small jigsaw puzzles (cherry picked from Android port, commit 5c9a7b64a06d07f97a41622c4b91d81f3419a51b)