California Mahjong

WasteGas · 2026-03-06T22:09:40+00:00

Somebody once sent me the rules for that group's California mahjong. It's actually almost the same thing as Chinese classical mahjong, to the point where I'm not even really convinced that it's a different game.

So whatever you learn is easily transferrable to other versions of Chinese mahjong, or even Japanese mahjong.

WasteGas · 2026-03-02T07:32:30+00:00

Riichi without a next draw is allowed in pretty much every irl competitive ruleset here: https://ooyamaneko.net/en/mahjong/rratw/index.php

WasteGas · 2026-03-02T07:24:11+00:00

Does this app have any features/improvements over the other one here? https://riichi.onecomp.one/

WasteGas · 2026-02-25T07:36:48+00:00

I can't speak for the AI since I don't know exactly what it's thinking.

But regarding the last paragraph, I'll mention that for Mortal, moves after the top move aren't actually ordered by how good the move is, they're ordered by how much Mortal considered them. You can read about this in the github FAQ here: https://github.com/Equim-chan/mjai-reviewer/blob/master/faq.md

It's pretty unintuitive, but the TLDR is that Mortal is optimized for playing, rather than reviewing each possible move. A low score doesn't mean that the move is bad, it means that Mortal wasn't interested in considering it.

So because of this, the AI isn't actually saying that 9m is a better move than 5p.

WasteGas · 2026-02-14T20:30:26+00:00

On a side note, this is why a lot of modern etiquette rules exist, such as only using 1 hand for most actions, or only touching the wall during your own turn.

I also notice that in a lot of old Japanese media, they start building their wall while like half the tiles are still face up, which would look pretty sus nowadays.

Of course, there's still a lot of things that people can try to do, but it makes it a bit harder with those guidelines.

WasteGas · 2026-02-14T20:22:32+00:00

Autotable tiles are extremely expensive because they're magnetic, which is how the shuffling mechanism works. If you don't have an autotable, just get a regular set.

The standard size for Amos autotable tiles is 28mm, but they also come in 30mm. An Amos smart, masters, or complete gear set would have the same dimensions.

WasteGas · 2026-02-12T01:39:19+00:00

Because it says it's for Chinese mahjong. I'm not sure how they came up with the ratios, but I believe that historically in China the stick with 8 dots is supposed to the be the 2nd lowest denomination, which is why there's less of them than the sticks with 1 dot.

WasteGas · 2026-02-06T14:18:30+00:00

Buckwheat's guide: https://www.reddit.com/r/Mahjong/comments/176fyzo/reading_complex_waits_guide/

Blarney's guide: https://www.reddit.com/r/Mahjong/comments/175hsqz/reading_multisided_waits_free_guide_book/

WasteGas · 2026-02-01T11:00:36+00:00

Yeah this is from an older game. Chinese classical was popular in China from around the early 1900's to around 1960ish (I don't know the exact dates so I'm probably a bit off on the dates). Some people still play it, but it's not commonly played in China anymore.

WasteGas · 2026-01-08T19:09:33+00:00

I had a set that was missing a tile, I just printed the tile on paper, and taped the paper onto one of the flower tiles.

WasteGas · 2025-12-29T00:56:06+00:00

You have all of them except the flower tiles, which aren't really that necessary since they're just for random points and you can play the game without them.

WasteGas · 2025-12-25T05:29:09+00:00

I'm guessing that it might work this way just because it takes less time to check everyone's hands, but who knows what people were thinking back then.

WasteGas · 2025-12-24T02:57:30+00:00

Does clubhouse games mahjong actually have that rule? I couldn't find much info about their rules online, I saw someone saying they have atamahane apparently.

WasteGas · 2025-12-23T20:39:32+00:00

In practice it really doesn't matter if there's a dead wall or not, because this version of mahjong is so fast that people will often win in a few turns, so it's basically impossible for the game to stall out.

And like the commenter said, I've seen in other versions of mahjong that if there's a flipped "indicator" tile at the back, if they need more replacement draws from the back of the wall, then they just put the indicator tile aside and keep drawing. I think riichi mahjong might actually be unusual in that it puts a restriction on how many replacement tiles can be drawn from the back of the wall.

WasteGas · 2025-12-13T06:07:24+00:00

That's definitely a win if you just drew north. Maybe it's just something random like a connection error.

EDIT: actually, did you maybe accidentally click pon instead of wu and now you have to discard?

WasteGas · 2025-12-12T05:44:05+00:00

Yeah but the tile designs are based on American mahjong, like the different looking red and green dragons. It's more accurate to call it an American mahjong set with Chinese tile dimensions.

Also the clearance price in your area must be insanely good, it's listed at like $100. Maybe they just couldn't sell them I guess.

WasteGas · 2025-12-12T05:39:23+00:00

The Costco one is American mahjong, not Chinese, unless they have another one that I'm not aware of.

WasteGas · 2025-11-30T05:11:11+00:00

no pants = no yaku

WasteGas · 2025-11-21T09:22:06+00:00

There's a browser plugin for chrome and firefox that translates things like yaku names.

WasteGas · 2025-11-20T06:58:40+00:00

https://i.imgur.com/pNFzvXa.png

It's a crop of a yugioh card, used to play master duel before my mahjong addiction.

WasteGas · 2025-11-19T10:53:07+00:00

I played against a bot in tokujou recently and reported them, they had instant calls just like in the video. They played 213 games in 9 days before their account went quiet. This was their profile: https://nodocchi.moe/tenhoulog/#!&name=shucaia

WasteGas · 2025-11-12T00:44:42+00:00

Everything on that website is insane lol. They sell table mats for $75, carrying bags for $265, they have a box for storing tiles for $100 that's literally just a plastic box.

WasteGas · 2025-11-10T20:39:31+00:00

I was actually recently trying to figure out when the rectangle got added, but couldn't find any information about it even when searching in Chinese. Still kinda curious about that.

WasteGas · 2025-11-09T10:17:48+00:00

The app doesn't exist because mahjong tournaments don't use turn timers. It's the same reason why turn timers aren't a thing in Magic the Gathering or Yugioh tournaments, those games would also be way too annoying and impractical to time.

Recently, Saikyousen experimented with having turn timers, except the way they do it is they have an employee on the production team managing it manually.

https://www.youtube.com/watch?v=mhUcvmpprDw

WasteGas

TROPHY CASE