Can you checkmate with a bishop and a knight?
yes
In fact I even had it in a tournament game a few years ago.
No. It didn't bother me. I never had an opportunity anyway or my opponent in 40 years.
No, too long and hard to memorize 😭
No , very hard . But if there is a chance , definitely can .
If I remember right I think i saw MVL do it against Daniel Narodistky in a blitz game