If your opponent were perfectly random, there would be no reliable way to beat them over the short term. But most opponents are not perfectly random, and that is the opening a strong player looks for.
Start with simple reads
Do not begin by overcomplicating the match. Watch for repeated openings, automatic switches after losses, and hesitation in later rounds. These simple habits are often more useful than elaborate theories.
Watch reactions, not just moves
A good read is often about how someone responds to the last round. Some players try to “correct” after a loss. Some repeat after a win. Some assume you think they will switch, then stick with the same move anyway.
The trick is to notice what kind of player you are dealing with as early as possible.
Avoid becoming easy to read
It is not enough to read the other player. You also need to manage your own predictability. If you always switch after a loss or always open aggressively, you are offering the same kind of pattern you are trying to exploit.
Good players adjust without becoming chaotic. They vary just enough to stay hard to map.
Take pressure rounds seriously
Important rounds change behaviour. Match point, comeback rounds, and streak-breaking situations often make players choose differently. If you have noticed a pattern earlier in the match, pressure is where it may either break or become even stronger.
The fastest way to improve
The quickest route to improvement is repeated play against real people. That is what makes a multiplayer environment useful: you start to see recurring human tendencies instead of abstract theory.
If you want to understand the reasoning behind these ideas, read rock paper scissors strategy. If you want to play immediately, jump back to RPS Online or go directly to the battle page.