For the first one, you may want to google “chess endgame database”. First hit (using Ixquick, for me) is an online database where you can quickly confirm that 2 bishops vs. 2 knights is a draw (whereas K+B+B vs. K+N is won for the bishops).
I can’t help you about the other two, but I think that searching more general terms might be better if you aren’t certain how the professionals talk about the topic in question (e.g. “quantum number conversation”).
Bishops generally gain in relative strength towards the endgame as more pieces are captured and more open lines are available for them to operate. When the board is empty, a bishop can influence both wings simultaneously, whereas a knight would need a few moves to do so. In an open endgame, a pair of bishops is decidedly superior to either a bishop and a knight, or to two knights. A player possessing a pair of bishops has a strategic weapon in the form of a long-term threat to trade down to an advantageous endgame.
For the first one, you may want to google “chess endgame database”. First hit (using Ixquick, for me) is an online database where you can quickly confirm that 2 bishops vs. 2 knights is a draw (whereas K+B+B vs. K+N is won for the bishops).
I can’t help you about the other two, but I think that searching more general terms might be better if you aren’t certain how the professionals talk about the topic in question (e.g. “quantum number conversation”).
There:
english.turkcebilgi.com/Bishop+(chess)
I found this:
If it’s not Googleable, it’s bingable.
Still not good enough.
Well, I was assuming you were talking about the pawnless endgame. For endgames with pawns, I guess there are far too much of them.