SparkChess synchronizes your history automatically across devices. Unfortunately, Chrome (and other browsers), may decide to purge local information for various reasons, such as low disk space.
We will add a force-resync feature in the near future, but until then you can force a resync in the following way:
- log in to SparkChess multiplayer from a different device or even from an Incognito tab (Ctrl+Shift+N on Chrome). Go to Account/History. You should see the last month’s games.
- Play a game in multiplayer in this new tab.
- Close the tab.
- back to your usual browser, log in again and check Account/History. It should be updated.