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

The game lobby gives players access to game rooms, according to a number of rule sets to play with.

Game interface

Riichi Chii Pon Kan Ron Tsumo
リーチ チー ポン カン ロン ツモ

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

Tenhou.net replay links shown.

Every replay is accessible via a "replay game link". It is accessible via the drop down menu labled: 「メニュー」 (menu). The first item is labled 「牌譜の管理」. A sub-window, as shown on the right, pops up. The replay links are available here. While they're stored under three tabs, the latter two display the exact game links.

Only a certain number of links are available at the time. Usually, the most recent 30 games played are accessible, as they are stored within a queue. It is possible to save and retain older game links by copy-pasting them elsewhere. This Wiki itself is full of old replay links. Users of the Windows client do not need to worry about losing game links.

Spectating

Players may use the interface to spectate "live games". However, they're not exactly live games, as they are actually delayed by 3-5 minutes. This is to eliminate any sort of cheating via simultaneous replay viewing, while in game.

In the main 0000 lobby, players may spectate games from either the Houou lobby. As such, any player may be able to watch and see the game play of the highest ranked players, currently in-game.

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
Main 0000 lobby, with the tabs for the four rooms indicated by a red box.

For Tenhou ranking, the game lobby is divided into four sub-rooms, with specific qualification standards.

  • Ippan
General lobby area. All lowest ranked players, unranked players, and new players begin playing here.
  • Joukyuu
Lower "dan" lobby.
  • Tokujou
Upper "dan" lobby.
  • Houou
Reserved for only the highest ranked players in Tenhou.net.

Custom rooms

Tenhou.net offers users the ability to play in custom rooms. Here, players may play unranked casual games, without any worry about their Tenhou.net ranking.

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

External links

Tools