Detailed Rules for the 2nd Oiu League

S-Class League

Participation Requirements

*Subject to change
- 1st and 2nd place finishers in the S-Class of the 1st Oiu League
- 1st place finishers in each block of the Challenger League in the 2nd Oiu League
- 1st place in the S-Class Qualification Match among 2nd place finishers of each block in the 2nd Oiu Challenger League (details to be announced later)

Rules

- First to 30 wins
- Round-robin league format

Promotion and Relegation

- Top 2 players remain in S-Class
- Bottom 4 players are relegated

Challenger League

Participation Requirements

*Subject to change
- 3rd and 4th place in the S-Class of the 1st Oiu League
- 3rd place finishers in each block of the Challenger League of the 1st Oiu League
- 1st place finishers in each block of the Master League of the 1st Oiu League
- Winners of the Challenger Replacement Match in the 2nd Oiu League
- Top 3 finishers in the Challenger Qualifying Tournament in the 2nd Oiu League
- 1st place finishers in each block of the Master League of the 2nd Oiu League
- 2 winners of the Challenger Qualification Match held among 2nd place finishers in the Master League of the 2nd Oiu League (details to be announced later)

Rules

- Maximum 18 participants
- First to 30 wins
- 6-player round-robin league format

Promotion and Relegation

- 1st place in each block is promoted
- 2nd place finishers in each block compete in the S-Class Qualification Match; the winner is promoted (details to be announced later)
- 3rd place finishers remain in the league
- 4th place and below are relegated

Master League

Participation Requirements

- 4th to 6th place finishers in the Challenger League of the 1st Oiu League
- 2nd and 3rd place finishers in the Master League of the 1st Oiu League
- Top 10 finishers in the A-Class of the 2nd Oiu League (details to be announced later)
Top 2 players from the Top-Class International League

Rules

- 24 participants
- First to 30 wins
- 6-player round-robin league format

Promotion and Relegation

- 1st place in each block is promoted
- 2nd place finishers compete in the Challenger Qualification Match; 2 winners are promoted (details to be announced later)
- 3rd place finishers remain in the league
- 4th place and below are relegated

A-Class League

Participation Requirements

- Achieved a rating of 3400 or higher in the Switch version of Puyo Puyo Champions
- Participated in the Master League of the 1st Oiu League
- Reached Top 8 in the combined A/B-class tournament of the 1st Oiu League

Rules

- First to 30 wins
- Round-robin format with 5 or 6 players per block

Promotion and Relegation

- The 1st place players from each A-Class group and the 1st place player from TCIL will be promoted
- The 2nd place players from each A-Class group and the 2nd place player from TCIL will be promoted if they win in the Master Qualification Tournament
No relegation

Top-Class International League

A high-level league featuring top players from outside Japan.
In the structure of the Oiu League, this corresponds to the A-Class level, so top players may qualify for the Master League.
All matches will feature live commentary and analysis.
Purpose: To introduce top players from outside Japan to the Japanese community

Participation Requirements

- Among those who wish to participate, the top 6 or higher in Ascension Rating as of July 25.
- Living outside Japan
*If you wish to participate, please contact Hiku via Discord

Rules

- First to 30 wins
- 6-player round-robin league format

Promotion and Relegation

Master Qualification Tournament

B1, B2, C1, C2 Class Leagues

Participation Requirements

None.
Please choose your class based on the rating and match record guidelines shown in the image above.

Rules

- B1, B2, and C1 Classes: First to 30 wins
- C2 Class: First to 20 wins
- 5- or 6-player round-robin format
*The Oiu League welcomes international players.
*We kindly ask overseas participants to play matches according to a time schedule that is convenient for Japanese players.

Promotion and Relegation

None.

D-Class and Beginner-Class Leagues

Participation Requirements

None.
Please choose your class based on the rating and match record guidelines shown in the image above.

Rules

Rules may be adjusted depending on the number of participants and their skill levels.
- D-Class will be split into two divisions: First to 20 wins and First to 10 wins
- Beginner-Class is planned as First to 7 wins
- 5- or 6-player round-robin format
※ The Oiu League welcomes international players.
We kindly ask overseas participants to play matches according to a time schedule that is convenient for Japanese players.

Promotion and Relegation

None.

Game Settings

- Software Used
Puyo Puyo Champions (Nintendo Switch™)
- Rule Set:
Puyo Puyo Tsu
- Game Settings
Room Password: Decide together with your opponent and any spectators
Connection Filter: Do not filter
Spectators: Allow if a match has spectators
Effects: OFF
Number of Sets: Refer to the number of wins required for your class
Number of WIN Count: Refer to the number of wins required for your class
Quick Drop: OFF
Boost: OFF
Margin Time: 96
Chain Restriction: None
Garbage Rate: 70
Puyos to Clear: 4
No specific rules on BGM or background

Connection Issues, Tardiness, and Misconduct

Connection Issues

In principle, a match that gets disconnected is treated as invalid.
However, if the outcome is clearly decided (e.g., a lethal amount of garbage is about to fall with no counter possible), that game may be counted as valid.
In cases where the disconnect occurs at different times on each player’s screen (e.g., one disconnects during the start of a chain, the other at the end), priority is given to the earlier point of disconnection.
*For matches with spectators in A-Class and above, the match is judged based on the spectator's screen.
*If a spectator disconnects before the match concludes in A-Class and the match ends without the spectator's stop signal, it may still be counted as valid if both players agree.
*For Master Class and above, all rulings are based on the spectator’s screen.

If players are unable to connect at all, please try the following steps:
1. Close Puyo Puyo Champions on your Switch and reopen it (press the X button on the Switch home screen to close the game).
2. Restart your router.

If you still cannot connect, consider rescheduling or consult with the organizers.

Tardiness

- If a player does not show up within 10 minutes, the match is canceled for the day. Please reschedule.
- If the late player contacts their opponent and the opponent agrees, the match can proceed even if the delay exceeds 10 minutes.
- The on-time player has full discretion. It’s completely fine to say “No match today.”
- Two unexcused late arrivals will result in disqualification.
- Even with notice, three instances of tardiness will also result in disqualification.
*Please remember that both players have arranged their schedules to make time for the match.
*Apologies to those who were kept waiting, but awarding a win by default may impact the league standings. If possible, reschedule and play the match.

Misconduct

- If we confirm excessive or inappropriate behavior on social media, trolling, disruptive conduct in matches, or stalking/harassment (depending on severity), the player will be banned from the Oiu League entirely.
*The decision to ban will be made by the league organizer, Piponeer.
*If you’ve caused trouble in the past or feel you’ve behaved inappropriately, please be careful this time.
*For younger players (and adults, too): remember that what you post on social media is seen by many people. Avoid making others uncomfortable.