Muk-jji-ppa rules and online play
Rules & online play.

Play Muk-jji-ppa online with a friend. Win the opening rock paper scissors throw to attack, then match your opponent's move while attacking to win.

One click creates a friend invite with 3 moves. Your player name is “You”.

Play Muk-jji-ppa →

What beats what?

The opening throw decides who attacks. On later throws, matching hands give the attacker the win. If the hands differ, the ordinary rock paper scissors winner attacks next.

Muk-jji-ppa: read your move down the left and your opponent’s across the top
Your moveRock (muk)Scissors (jji)Paper (ppa)
Rock (muk)Attacker wins*WinLose
Scissors (jji)LoseAttacker wins*Win
Paper (ppa)WinLoseAttacker wins*

Ordinary matchups that pass the attack

Example: If you lock in Rock (muk) and your friend locks in Scissors (jji), you take the attack on the next throw. If you both choose Rock (muk), the attacker wins if one has been established; an opening match is replayed.

*On the opening throw, no attacker exists yet, so a match is replayed.

How the attack changes hands

First throw ordinary rock paper scissors until one player wins. That player becomes the attacker. Both players keep throwing together. A matching pair now wins the whole game for the attacker; otherwise the ordinary rock paper scissors winner attacks on the next throw.

A worked round

Alex opens with rock against Sam's scissors and becomes the attacker. Next, Alex plays paper while Sam plays rock; Alex stays the attacker. On the third throw both choose scissors, so Alex wins the game. If Sam had played scissors against Alex's paper on the second throw, Sam would have taken the attack instead.

Matching throws and the attack

There are 3 moves for each player, so there are 3 × 3 = 9 possible ordered pairs of moves. Exactly 3 pairs match. If both players choose independently and each move is equally likely, the match rate is 3/9 = 1/3, or about 33.3%.

That one-in-three match rate describes each independent throw, not a tie rate for the whole game. An opening match is replayed. After an attacker exists, a match ends the game for that attacker.

History and origins

Muk-jji-ppa is a Korean two-player extension of rock paper scissors. Its name refers to the rock, scissors and paper gestures. The extra rule changes the purpose of a matching throw after an attacker has been established: it ends the game in that attacker's favor.

Read more: Korean Muk-jji-ppa rules overview.

How to play Muk-jji-ppa with a friend

  1. Create and invite. Start a Muk-jji-ppa contest and share its link or code with a friend.
  2. Choose the first attacker. Throw rock, scissors or paper until someone wins an ordinary matchup. That player attacks.
  3. Keep throwing. If the moves differ, the ordinary matchup winner attacks next. Both choices remain hidden until locked.
  4. Match to win. When both moves match, the current attacker wins the game. The creator can then start a new game.

No account or download is needed. Keep using the same browser to retain your seat. The contest expires seven days after creation.

Questions about Muk-jji-ppa

How do you win Muk-jji-ppa?

Win the opening rock paper scissors throw to become the attacker. On a later throw, the attacker wins when both players choose the same move. Different moves give the next attack to the ordinary rock paper scissors winner.

What if the opening throw ties?

Neither player has the attack yet. Throw again until one player wins an ordinary rock paper scissors matchup.

Can I play Muk-jji-ppa against the computer?

Yes. The computer commits a random rock, paper or scissors move before you choose on each throw. The attacker and final winner are decided on the server.

Can I see the other player's move early?

No. Each choice stays hidden until both players lock in. The current attacker is visible, but neither player's next move is revealed early.

Ready to put the rules to work?

Create a contest with Muk-jji-ppa already selected, then invite a friend or choose the computer.

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Try another ruleset

See our comparison of rock paper scissors variants to choose by number of moves, tie rate and learning time. For a three-choice game from Indonesia, try the Elephant Human Ant hand game, where the ant beats the elephant.