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Mahjong Master
hand structure riichi

Chuurenpoutou

九蓮宝燈
(ちゅうれんぽうとう)

Definition

Nine gates - a yakuman where you have 1112345678999 of one suit plus any tile of that suit. Must be closed. Pure form (waiting on all 9 tiles) is double yakuman in some rule sets.

Chuurenpoutou

Chuurenpoutou (九蓮宝燈, ちゅうれんぽうとう) is one of the most aesthetically beautiful yakuman hands, requiring a specific pattern: 1-1-1-2-3-4-5-6-7-8-9-9-9 of one suit, plus any one tile from that same suit (your 14th tile). The name translates to “nine gates” and represents one of the most coveted yakuman due to its elegant structure. Must be a completely closed hand.

Detailed Explanation

Requirements

To achieve chuurenpoutou, you must have:

  • Base pattern: Three 1s, one each of 2-3-4-5-6-7-8, and three 9s—all in the same suit
  • One additional tile: Any tile from that same suit (your winning tile or 14th tile)
  • Completely closed: No pon, chi, or kan calls allowed
  • Single suit: All 14 tiles must be from one suit (all bamboo, all characters, or all dots)

For example: 1-1-1-2-3-4-5-6-7-8-9-9-9 bamboo plus one more bamboo tile (perhaps another 5-bamboo) = chuurenpoutou in bamboo.

Perfect Form (Pure Nine Gates)

If your winning tile completes the exact 1-1-1-2-3-4-5-6-7-8-9-9-9 pattern without duplicates (i.e., you were waiting for any of the nine different tiles 1-9), some rule sets award double yakuman for “pure chuurenpoutou” (junsei chuurenpoutou). This perfect form is extraordinarily rare.

Strategic Considerations

Closed Hand Requirement: Unlike many yakuman, chuurenpoutou must remain closed throughout. Any pon or chi call destroys the hand permanently. This makes it slower to complete but preserves its purity.

Tile Efficiency Challenge: You need 13 specific tiles from one suit (1-1-1-2-3-4-5-6-7-8-9-9-9) before drawing your winning tile. This is statistically very difficult—you’re drawing from only 36 tiles (one suit’s tiles) and need almost all types.

Nine-Way Wait Potential: If you achieve the exact base pattern, you’re in tenpai waiting for any of nine different tiles (1-2-3-4-5-6-7-8-9) from your suit. This is called a “nine-way wait” and represents maximum tile acceptance.

Chinitsu Foundation: Chuurenpoutou always includes chinitsu (pure flush) since it uses only one suit. However, yakuman overrides chinitsu, so you score only yakuman.

Rarity and Beauty

Chuurenpoutou is legendary for its rarity and aesthetic appeal:

  • Visual symmetry: The 1-1-1 and 9-9-9 terminal triplets framing the 2-3-4-5-6-7-8 middle sequence create perfect balance
  • Statistical difficulty: Requiring 13 specific tiles from 36 available makes it one of the hardest yakuman to achieve
  • Nine gates symbolism: The name evokes nine gates or doors, suggesting the nine possible winning tiles

Many players consider achieving chuurenpoutou a lifetime mahjong goal.

Usage Example

You draw an exceptional hand with multiple bamboo tiles and commit to chuurenpoutou early. You self-draw 1-1-1 bamboo, 2-3-4-5-6-7-8 bamboo, and 9-9-9 bamboo, completing the base pattern. Your hand is tenpai waiting for any bamboo tile 1-9 (nine-way wait). You self-draw 5-bamboo, completing the hand with 1-1-1-2-3-4-5-6-7-8-9-9-9 bamboo plus the additional 5. You declare chuurenpoutou (yakuman), scoring 8,000 base points (32,000 total for non-dealer) or 12,000 base points (48,000 total for dealer). Under pure form rules, if you had no duplicate middle tiles, you’d score double yakuman.

Chinitsu: Pure flush—one suit only. Chuurenpoutou always includes chinitsu but scores yakuman instead.

Menzenchin: Closed hand. Chuurenpoutou requires complete menzenchin—no calls allowed.

Yakuman: The highest-value hand patterns. Chuurenpoutou is one of the rarest and most beautiful yakuman.