Yes. Your board, tray and score are saved in this browser, and your personal best stays when you start a new game. Clearing site data removes them.
Yes, in the browser you are using.
What is saved
- The current board, your three tray pieces, your score and your piece count, so you can leave and come back.
- Your personal best score.
What it does not do
- The save does not follow you to another browser or device.
- Clearing site data removes it.
- There is no account, daily mode or public leaderboard.
Starting again
New game replaces your current board and asks for confirmation during play, but your best is kept. When a game ends, Play again starts a fresh board without confirmation and also keeps your best.
There is also no time pressure: see what ends the game. The strategy guide has tips for beating your best.