Menzenchin: Difference between revisions
(Created page with "A hand is '''menzenchin''' {{kana|門前清}}, '''menzen''' for short, or "closed" in English, when it has not called on another player's discarded tile. This means the player has not called chii, pon, or an open kan. A closed kan (kan when drawing all 4 tiles yourself) does not break menzenchin. A hand that is not closed is known as an open hand. This would be a hand that has called chii, pon, or an open kan. If a hand is open, it cannot score s...") |
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A hand is '''menzenchin''' {{kana|門前清}}, '''menzen''' for short, or "closed" in English, when it has not called on another player's discarded tile. This means the player has not called [[chii]], [[pon]], or an open [[kan]]. A closed kan (kan when drawing all 4 tiles yourself) does not break menzenchin. | A hand is '''menzenchin''' {{kana|門前清}}, '''menzen''' for short, or "closed" in English, when it has not called on another player's discarded tile. This means the player has not called [[chii]], [[pon]], or an open [[kan]]. A closed kan (kan when drawing all 4 tiles yourself) does not break menzenchin. Only closed hands can score certain [[yaku]]. | ||
A hand that is not closed is known as an open hand. This would be a hand that has called [[chii]], [[pon]], or an open [[kan]]. If a hand is open, it cannot score some [[yaku]], and other yaku are reduced in value. While an open hand is usually less valuable than a closed one, but it has the ability to use chii and pon to complete faster. | A hand that is not closed is known as an open hand. This would be a hand that has called [[chii]], [[pon]], or an open [[kan]]. If a hand is open, it cannot score some [[yaku]], and other yaku are reduced in value. While an open hand is usually less valuable than a closed one, but it has the ability to use chii and pon to complete faster. | ||
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==Yaku== | ==Yaku== | ||
===Closed Only=== | ===Closed Only=== | ||
These yaku can only be scored | These yaku can only be scored closed; they cannot be scored with an open hand. | ||
{| class="wikitable" width=50% | {| class="wikitable" width=50% | ||
Revision as of 14:55, 7 August 2024
A hand is menzenchin 「門前清」, menzen for short, or "closed" in English, when it has not called on another player's discarded tile. This means the player has not called chii, pon, or an open kan. A closed kan (kan when drawing all 4 tiles yourself) does not break menzenchin. Only closed hands can score certain yaku.
A hand that is not closed is known as an open hand. This would be a hand that has called chii, pon, or an open kan. If a hand is open, it cannot score some yaku, and other yaku are reduced in value. While an open hand is usually less valuable than a closed one, but it has the ability to use chii and pon to complete faster.
Yaku
Closed Only
These yaku can only be scored closed; they cannot be scored with an open hand.
| 1 han | 2 han | 3 han | |
|---|---|---|---|
| Riichi | Iipeikou | Double riichi | Ryanpeikou |
| Ippatsu | Pinfu | Chiitoitsu | |
| Menzen tsumo | |||
Kuisagari
Kuisagari 「喰い下がり」 is a property of some yaku to lose value when called open. Each yaku affected by kuisagari loses 1 han when opened.
| From 2 han to 1 han | From 3 han to 2 han | From 6 han to 5 han |
|---|---|---|
| Sanshoku | Honitsu | Chinitsu |
| Ittsu | Junchan | |
| Chanta |
Open
These yaku are unaffected by the hand's open/closed status.
| 1 han | 2 han | |
|---|---|---|
| Tanyao* | Sanankou | Shousangen |
| Yakuhai | Sanshoku doukou | Toitoi |
| Sankantsu | ||
* Assuming kuitan (open tanyao) is enabled.
In addition, any yakuman that can be scored open do not lose value if opened.