David - Osamuko's Mahjong Blog

[Houou Lab] Looking at Tenhoui ASAPIN’s Calling Part 2 (Calling when cornered, chasing after riichi)

In the first part, we introduced ASAPIN’s criteria for opening his hands, and calling to elongate and switch out shapes. This time, we will discuss melding when you’re cornered, chasing after riichi by melding, this is the essence of ASAPIN’s mahjong technique.

Mahjong News

Fuzz Releases New Mahjong Server, Jong City

Japanese developer Fuzz released a new mahjong server in February called "Jong City" with support from pro leagues Real Mahjong Unit and Nihon Pro Mahjong. The server's key feature is webcam

Guides

[Houou Lab] Looking at Tenhoui ASAPIN’s Calling Part I

Original article by Kentaro on his blog, but was republished on Mahjong Watch recently. Translated by an annoymous translator. Looking at ASAPIN (@asakarapinpin’s) paifu, there are plenty of cases where he makes

Mahjong News

ASAPIN Joins a Pro League

ASAPIN, the legendary player who reached Tenhou's summit twice, announced this week that he will be joining the Saikouisen Nihon Pro Mahjong Kyoukai (Saikouisen). In his announcement post on his new blog, ASAPIN

Mahjong News

End of an Era, Tonpuusou Shuts Door After 21 Years

Online mahjong game Tonpuusou announced it is turning off the servers in March after 21 years of service. Created by Katsu "mjman" Azuma, Tonpuusou made its splash on the mahjong world

Statistics

[Paifu Analysis] Is their Riichi hand expensive?

Orginal post: http://doraaka.exblog.jp/15552053/ by Kita Haz. Translation by Butane with permission Hi. Sorry to be getting straight to the point, but let’s say that you’re the dealer

Mahjong News

Yuudai Maehara Defends Hououisen Title

Yuudai Maehara 9 Dan held on to Japan Professional Mahjong League's highest title for the 2nd year. Yuudai has won the Hououisen four times (1995, 2008, 2016. 2017) and shares the record of winning the Hououisen the most times with the late Mitsuru Andou-pro.

tenhou

A History of Tenhou - Part 1

Release history until Tenhou: June 2000 - 25-year-old Tokyo University School of Engineering Postdoctoral student Shingo "C-Egg" Tsunoda released his first game, a free to play RTS 'Egg Market'. Egg Market

Tournaments

International Mahjong Battle @ RTD

(Featured photo and various parts of this post are from Mahjong Watch in October of 2016, after finally planning my first ever trip to Japan with Daniel Moreno of PML, I emailed Shingo

Players

World Riichi Championship 2017 Player Profile: Masaharu Tomotake

Organization: Japan Professional Mahjong League Birthplace: Chiba Year born: 1958 Rank: 8 dan Years Pro: 23 Nickname(s): ? Favouite yaku: Sanshoku Doujun, Honitsu Titles: 24th Hououi (2004) 2nd World Riichi Championship (2017) International

Tournaments

2017 World Riichi Championship Las Vegas - Report Part 2 - Tournament

Day 3 - Thursday 5th I woke up rather early. Even though I went to bed at 3am, I woke up at 6am. Jet lag? I wasn't feeling tired though. While confirming where

Tournaments

2017 World Riichi Championship Las Vegas - Report Part 1 - Prologue

The 2017 World Riichi Championship took place in Las Vegas last week and attracted 224 players, almost doubling the participant size from its predecessor, making it no doubt the largest Japanese mahjong tournament

Players

World Riichi Championship 2017 Player Profile: Hiroshi Yamai

Hiroshi Yamai made history in 2014 by winning the first WRC. Will he be able to defend his title in 2017?

Players

World Riichi Championship 2017 Player Profile: Shigekazu Moriyama

Born in 1951, Onoda, Yamaguchi, Moriyama is the president of Japan Professional Mahjong League.

Mahjong News

Professional Mahjong Commentary on Mondo in English!

MondoTV have uploaded 2 videos with English commentary by mahjong researcher Benjamin Boas and mahjong author Ryan Morris. Benjamin’s contribrutions to the community should be fairly well known to everyone, and Ryan’

Mahjong News

Totori-sensei 19 years old wins the first season of Tenhoui vs Renmei

Photo from Ben and Deniz This year JPML collaborated with Tenhou and hosted a 6 month long Tenhoui vs Renmei pro tournament. The first season used a Tenhou based ruleset with 50/20/

Mahjong News

Osamuko Discord!

We’ve created a Discord (a free to use voice and text chat system that can even be opened in browsers!) channel for people to talk about mahjong and other semi-related stuff. Link:

Mahjong News

Mahjong News 20-01-2016

It’s been a while since the last news post (and post) so let’s jump straight in: Message from Benjamin Boas Benjamin wrote the following message to the Osamuko facebook group and

Tournaments

A Step Forward (Mahjong Japan Series)

This month, the Japan Professional Mahjong League debuted a new tournament, the Mahjong Japan Series. This series gathers 12 players who have either won a major title in 2014, voted by the public

Tournaments

2015 UK Riichi Mahjong Open Results (Day 2 Final Results)

Edit 18/08: UKMA have uploaded the rankings to their website (http://www.ukmahjong.co.uk/results.html), however there seems to be a few errors in their table. Differences from the table

tenhou

Bots on Tenhou? More likely than you think!

Inspired by Shogi’s ‘Denousen’, a niconico sponsored AI vs professional tournament, Tsunoda has posted on Tenhou’s blog a few months ago that he wanted to hold similar tournaments. While bots were

Mahjong News

Tohai S1 is completely subbed!

Tohai Season 1 xkime previously subbed episode 1 of the live action adaptation of Shinasaka’s Tohai manga, since then he has moved on to subbing it on Rakuten’s (free) streaming service

Mahjong News

Benjamin Boas Leads in First Session of Good Players Club Tokyo Chomeijin

About GPC Good Players Club is run by Katayama Masayuki and Baba Hirokazu and organizes public leagues and tournaments throughout Japan. Anyone who is a ‘productive member of society’, not a Jangoro (basically

Entertainment

Unified Mahjong Terminology

Every time a new mahjong site pops it, it seems a new set of terminology is invented. To stop confusion we at Osamuko have created a new set of terminology for Japanese Mahjong.

Tournaments

English Online Mahjong Events

PML Mugboney Mug After 4 long months the PML Mugboney Mug Team tournament finally ended, the winner was Team ／人◕ ‿‿ ◕人＼ (Pronounced ‘keiyaku’). The tournament had 20 3 player teams, and was sponsored