More tweaking...

Still unsatisfied with the player edge, I have now made it so you must roll EXACTLY two die. If those rolls are low, too bad!

In testing this, I still find that playing a safe strategy (rarely if ever risking busting) results in a very high winrate for the player. The dealer just so often either busts or gets a low score. I want to do a little more testing, but if this keeps up I think I might need to find some way to code in a way for the dealer to "see" the first roll, then choose his next die accordingly.

It occurs to me that currently, the only strict advantages the player has over the dealer is the ability to roll die independently, and the ability to see one of the dealer's die. If I allow the dealer to roll sequentially (and make good decisions when doing so), I am removing almost all the player edge. Maybe this is good? It will force the player to lean more on the info of the dealer's shown die, which I can't imagine is very helpful info.

I am also reticent to implement the dealer-sequential-decisionmaking thing because it would be hard to code.