This is why pre-moving has its disadvantage. For example, you could move somewhere and the someone else set up a trap. The only disadvantage pre-moving has is not knowing where your opponent will go. Pre-moving is useful in very fast chess like hyperbullet or ultrabullet.
Mostly, you might want to trade in Hyper Fiesta all week because points will give big advantages of winning. You want to have as many points as you can at the end you the game so you can win the game. Trading is very useful when you want to get points.
