Pawn Promotion to... Bishop?
<RobertJames Perez> Starting from move 6 in the variation in your post there is a forced win for black. Check it in a good tablebase, you will see...
I went here - http://chessok.com/?page_id=361 - and this is what I got (I inverted the position):
Very nice!
Seems to me like it’s more common to promote to a knight rather than a rook or bishop, even though rooks are probably more powerful. Mainly it’s situational. Promoting to a bishop rather than a queen is mainly for stalemate, but why not promote to a rook if a queen causes stalemate? And why can’t the enemy king just move to a light square (if the new bishop is dark squared)
I promoted to a bishop and a knight in the same game so I could practice my bishop, knight and king vs king checkmate
HessianWarrior wrote:
Sometimes a queen would cause stalemate.
Exactly, I had game where a Queen would have caused a stalemate but the Rook was a winner.
k7/n7/3P4/K5N1/8/8/8/8 w - - 0 1
sometimes underpromotion can leads less trades on boars when both players have equal control on the promoting square i have never seen such cases but found an advantage of underpromotion
it might stop stalemate