Thanks for trying it.
Solving 64 puzzles can become tedious, like you said; that's why I put a numPuzzles slider on the main page. I usually set it to 16. Maybe I should make that the default setting? That is within my power.
Refreshing the page in the middle of the game shouldn't be a problem; it reloads the ongoing game from a cookie. Do you have security settings getting in the way? (Is there a better way I could implement refresh protection? How does Dordle do it?)