Training Tool - Naga Replay Review

The developers of Naga have released a paid service where you can have Naga review your games. Let's go over it!

Analysis - Factors for Dama

In this analysis, we'll look at several aspects of the game and see how they affect whether a player chooses to riichi or dama a tenpai hand.

Analysis - Dama

I'm finally analyzing dama hands with the help of the drastically faster shanten calculation algorithm. Let's take a look at these mysterious creatures.

Analysis - Tenpai Chance By Tedashis and Tsumogiris

In this post, we'll look at the chance someone is tenpai based on the number of tedashis they've done, as well as what that tedashi is.

Guide - Replay Analysis

In this post, I'll go over the scripts I use to analyze replays, for anyone who also wants to try to do some analysis. Naturally, you'll need to know some amount of programming. We'll also look at a silly analysis I did which looks at the average composition of discards based on the hand's yaku.

Analysis - Flush Overflow

Today we'll be talking not about toilets, but about honitsu or chinitsu hands. It's often said that a flush hand becomes particularly dangerous once they cut the first tile of their suit (known as overflow), so let's dive into the Houou replays and see what the data says.

Analysis - Houou Stat Correlations

Do the stats of a Houou player have any correlation with each other? Does someone who calls more win more? Do they deal in more? Have lower value? Let's look at a bunch of these.

Analysis - Shanten After Calling

Someone sent me a blog post with information on the average shanten after a player makes a call, then asked if the tonpu numbers would be different. So, I recreated the code and went into more detail. What's the average shanten after someone makes their Xth call on Y turn? What about their chance of being tenpai? Does the type of call affect it? Let's see.

Analysis - Playstyle Changes Based On Lead

When you're ahead in a game of Mahjong, do you call more to try to finish hands faster and move the game along? Do you stay dama instead of calling riichi to increase your safety? Do you deal into hands that look cheap? Let's see what the Houous do.

Analysis - Tile Drop Order

Previously, I did a post about how tile danger changes based on the last two tiles of a suit a player has discarded. One thing I didn't look at in that analysis was how frequent each order was. That could be interesting, so let's take a peek.

Analysis - Disconnections

Disconnecting from a game sucks, but how much does it suck? How much is your winrate impacted based on the length of your disconnection? Let's take a look at the Houou players.

Analysis - Rates by Starting Shanten

 I was curious if hands with higher starting shanten had higher average values, so I ran some analysis to gather the data. Also included are the win rates, riichi rates, average riichi turns, and call rates for each starting shanten.