Tenhou.net

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Tenhou (天鳳, tenhou.net) is the one of the most popular online mahjong service in Japan. It is also the platform of choice for the English-speaking community.

Development history

  • 2006/02/20 Hanjyukusou (半熟荘) beta released
  • 2006/08/01 Came out of beta
  • 2006/10/24 10,000 IDs registered
  • 2007/01/20 Changed name to Tenhou
  • 2007/12/25 100,000 IDs registered
  • 2008/02/01 Windows client released
  • 2009/02/20 Houou table opened
  • 2010/08/22 1,000,000 IDs registered
  • 2012/06/09 10,000 concurrent users
  • 2013/07/10 2,500,000 IDs registered

Basic user's guide

Tenhou.net is a Japanese site. So, anyone, who is not familiar with navigating Japanense sites, may have some difficulty.

Game lobby

Game interface

During the game, most of the clickable options are near the bottom of the screen. The rest is dedicated towards other players' hands (unrevealed of course) and the discard piles in the center. Also in the center, a square display shows players' point standings, names, and rank. In addition, the current wind round is indicated in the center square as well as the number of honba as well as the number of riichi points on the table.

Individual player statistics

Players with registered IDs have various statistics tracked by Tenhou.net. These numbers can be read on the right side of the lobby window.

Replays

Spectating

Game rooms

Romaji Kanji Rank qualification
Ippan 一般 四段 R1800 (or lower)
Joukyuu 上級 1新
Tokujou 特上 四段 R1800
Houou 鳳凰 七段 R2000

For Tenhou ranking, the game lobby is divided into four sub-rooms.

Tenhou.net house rules

The site specifies a number of specific rules. While many general rules and procedures still apply, a number of rules for the game overall may be deemed as "optional"; and they may not apply elsewhere.

The most important rules to note:

Ranking system

Table key
Kanji English Kanji English
Tenhou rank 1位 First place points
初期pt Base points 2位 Second place points
東風戦 East only 3位 Third place points
東南戦 Full hanchan 4位 Fourth place points
昇段pt Target points Rank based on Tenhou points
Tenhou points set to next base points for next rank

Four player

初期pt 東風戦 東南戦 昇段pt
1位 2位 3位 4位 1位 2位 3位 4位
新人 0 一般
+30
一般
+0
+0 0 一般
+45
一般
+0
+0 0 30
9級 0 0 0 30
8級 0 0 0 30
7級 0 0 0 60
6級 0 0 0 60
5級 0 0 0 60
4級 0 0 0 90
3級 0 0 0 100
2級 0 -10 -15 100
1級 0 上級
+40
上級
+10
-20 上級
+60
上級
+15
-45 400▼
初段 200 -30 -45 400▼
二段 400 -40 -60 800▼
三段 600 -50 -75 1200▼
四段 800 特上
+50
特上
+20
-60 特上
+75
特上
+30
-90 1600▼
五段 1000 -70 -105 2000▼
六段 1200 -80 -120 2400▼
七段 1400 鳳凰
+60
鳳凰
+30
-90 特上
+90
特上
+45
-135 2800▼
八段 1600 -100 -150 3200▼
九段 1800 -110 -165 3600▼
十段 2000 -120 -180 4000▼
天鳳位 Highest rank possible

Three player

初期pt 東風戦 東南戦 昇段pt
1位 2位 3位 1位 2位 3位
新人 0 一般
+30
+0 0 一般
+45
+0 0 30
9級 0 0 0 30
8級 0 0 0 30
7級 0 0 0 60
6級 0 0 0 60
5級 0 0 0 60
4級 0 0 0 90
3級 0 0 0 100
2級 0 -10 -15 100
1級 0 上級
+50
-20 上級
+75
-45 400▼
初段 200 -30 -45 400▼
二段 400 -40 -60 800▼
三段 600 -50 -75 1200▼
四段 800 特上
+70
-60 特上
+105
-90 1600▼
五段 1000 -70 -105 2000▼
六段 1200 -80 -120 2400▼
七段 1400 鳳凰
+90
-90 特上
+135
-135 2800▼
八段 1600 -100 -150 3200▼
九段 1800 -110 -165 3600▼
十段 2000 -120 -180 4000▼
天鳳位 Highest rank possible

External links

Tools