Wow! That was tough. It took me eight guesses. Really appreciated the extra guesses -- don't think I could've solved this in six.

I'd guessed wrong on what "A" and "B" meant -- I had it reversed, of course -- and figured it out around the 7th guess. I just assumed that not having the instructions was part of the game. (It's almost like a "deconstruction" of Wordle.)

Another game I found from the comments on Hacker News is Quantum Wordle. I bring that up because this game had a similar feel, like you're "flying blind," almost like chess, where you're keeping an abstract model in your head to strategize on using your guesses...

https://qwordle.bhat.ca/