** https://git.sugarlabs.org/slider-puzzle-branch is the upstream repo, with a PR (https://git.sugarlabs.org/slider-puzzle-branch/mainline/merge_requests/1)
−
** https://git.sugarlabs.org/slider-puzzle-branch is true upstream
+
** https://git.sugarlabs.org/acsliderpuzzle/acsliderpuzzle/commits/master is a duplicate repo, to be compared