as single words.
write the name of a game in small letters, four of 'em. reverse the third and fourth letters. turn the new fourth letter upside-down... any old way you want to. the result will name something else to play as well as a place where one form of the first game can be played. what is it?
your original puzzle: if you reverse the second and third letters of the 4-letter game and turn the 4th letter upside down, you have "pool" & "pool."
if you reverse the third and fourth letters of "polo"→"pool" and turn the fourth letter upside down, you still have "pool."
in polo don't you have to pool 