can there be two black Bishops after a pawn promotion
If you promote 2 pawns on dark squares and choose the bishop for both, sure. Also if you already had a dark square bishop and promoted a pawn to another one as well. Hopefully you've got other pieces on the board at the time though.
The only thing I can think of is that one bishop takes away an escape square from the enemy king and the other bishop delivers mate. It would have to be a really unlikely, composition type scenario
Yes, there are rare instances where promotion to queen can produce an unintended stalemate. It would suck to bust your rear to promote your pawn to a queen only to realize you let your opponent off the hook by way if a stalemate. 🤣
To the topic, yes.
Because yet again, someone is being a sheeple. Of course you can. Its just not allowed by the GM secret conclave, because it could possibly expose how games are rigged by computers. You think Kasparov really played Deep Blue? No, he was simply replaced with a hologram and Deep Blue was actually playing both sides of the board. Everyone knows Kasparov could beat Deep Blue 12-0-0.
Of course.
Yes Ruben, I think the OP meant black squared bishops...
Yeah or this one two of the same collar.
Yes Ruben, I think the OP meant black squared bishops...
Ok thats not what he said but also that s possible.
True, but we can be guided by context...
The only time I have underpromoted to get a second bishop of the same color (of a bishop I already have) is over 50 years ago, when I was torturing my little brother. btw, I would think that K + 8 black Bishops v K would be a draw if the King can get to the right corner. (EDIT: an unnecessary qualifier. It draws in all, but a few instances. )
And while I hate to admt it, this forum thread is surely a sign that we miss 21QC;
Looking further into the OP's query; what benefits are there for having both Bishops of the same color though?
I'm sure there must be a few study like positions were sub promotion wins and stalemate is avoided, but these are very exceptional and unlikely to occur in several life times OTB.
I can't see a situation where it would be necessary to promote to a bishop, given that the queen performs the same function.
I can't see a situation where it would be necessary to promote to a bishop, given that the queen performs the same function.
When delivering mate, you're right it wouldn't matter. It might matter in a non mate situation where a queen would stalemate the king though I guess. Otherwise it could be one of those situations where it doesn't matter what you promote to, all result in mate. Kind of like a back rank mate where queen or rook will do the job. Choose your favorite piece. I'm sure there are some compositions that require strange under promotions.
Good points, thank you.