Why is this the answer?

The answer is chess because this clever riddle uses beautiful word pictures to describe the famous board game that has been played for hundreds of years. The puzzle is really talking about the special pieces and the board you use to play the game. Let us look at the last clue first, since it is the easiest one to check. The riddle says, "thirty-two on sixty-four." Think about the chess board. It is a big square made up of 64 smaller, alternating light and dark squares. That is the "sixty-four" part of the riddle. When you set up the game, each player starts with 16 pieces, which means there are exactly 32 "warriors" on the board when the game begins. This is the "thirty-two" part. This clue is the secret key that unlocks the whole riddle. Now, let us look at the other parts. The riddle calls the game "A slow, solemn square-dance of warriors feinting." The pieces, like the Knights, Rooks, and Pawns, are the "warriors." They are named after fighting figures because the game is like a friendly battle between two small armies. These pieces move across the square board in a very specific way, which looks a bit like a careful and serious "square-dance" as you plan your moves. You cannot rush when you play chess, which is why the riddle says it is "slow" and "solemn" or serious. It takes a lot of thought to decide which square to move to. "Feinting" means making a fake or tricky move, and good chess players are always trying to trick their opponent with clever plans before making their real attack. Finally, the riddle says, "One by one they fall, warriors fainting." As you play, you capture your opponent's pieces, and they are taken off the board. The riddle describes this as the warriors "fainting" or falling. This happens when your piece lands on a square where an enemy piece is sitting, and the enemy piece is removed from the board. It is a fun way to say that when a piece is captured, it is removed from the battle until the game is over. Every part of the riddle describes a special part of playing chess, a game that teaches you to think ahead and plan your movements just like a real general commanding an army.