if silver raced bạn and he won, (by cheating) and bạn knew he was cheating, what would bạn do.

I'd most likely pretend to not notice and go up to to "congratulate" him and instead of shaking his hand I'd cú đấm him in the gut then slap him saying "take that cheater!"

do nothing and congratulate him...

Silver wouldn't cheat in a race, I'm sure about that.

I would rematch him in a different way to race. Then challenge him to do what he did to cheat without it.