"Under-promotion" - deliberately not changing a pawn into a queen is very rare and the unique properties of the knight do matter tactically. Under-promotion not

"Under-promotion" - deliberately not changing a pawn into a queen is very rare and the unique properties of the knight do matter tactically. Under-promotion not to a knight can matter because of stalemate. (Most under-promotion is the domain of chess problems rather than games). https://www.chess.com/article/view/a-guide-to-underpromotion https://www.chess.com/article/view/a-guide-to-underpromotion