In chess how many times can you use "Underpromotion."?

Question

Please tell me the answer!!

Answer 1

Well, you have eight pawns. It is possible to promote all eight.

When each one promotes, you can chose what piece you want them to be. You could get eight extra knights if you wanted to.  That would be eight underpromotions.

Answer 2

Underpromotion is most common when a knight is created in place of a queen to impart some tactical advantage.  In other cases a rook or bishop are chosen to avoid stalemate.  

Eight is the maximum for each side yielding up to 16 in a single game.

In some rare cases irritated players will do it to mess with an opponent who will not resign.  I once had a jerk overhear my friends trying to get me to finish a game and go out to eat with them.  The opponent, who was completely busted, materially and positionally said that he promised his mother he wouldn't resign then offered me a draw.  I had my friends bring me something back and proceeded to run the game to over 180 moves (before sudden death) and he resigned when my five knights (4 under promotions) were about to mate him.  I then told him that his mother would be ashamed of him!  ;-)

Answer 3

8 is possible, though not likely.

Answer 4

8.  you have 8 pawns.

Answer 5

There's no rule preventing you from underpromoting any time one of your pawns reaches the 8th rank.

You don't ever have to promote the pawn to a queen if you don't want to.

The only reasons to ever underpromote would be;

1) If promoting to a Queen immediately produces a stalemate

2) You should promote to a Knight if it produces an immediate and decisive advantage (such as a Knight fork or a forced mate brought on by the Knight's unique moving pattern)