[sirclueless]

I wish there was a better way to switch between pencil marks and writing final answers. I put up with multiple clicks on my phone because I only have one finger, but I have a keyboard and a mouse with two buttons -- maybe holding spacebar would toggle, or right-clicking or something.

[nicholas73]

That's a fair critique. I wasn't sure to allow additional controls because that would involve overriding browser actions, which may bother others and be inconsistent, and also is unintuitive. Definitely a more involved HTML5 game would require it, but I anticipated a casual level of players who only a few would be long term repeats.