The Riichi
Mahjong
Auto-Compass
Endorsed by North Star Riichi Mahjong
Minneapolis/St. Paul, MN
What is the Auto-Compass?
The Auto-Compass replaces the traditional physical compass most players use for hand-shuffle Riichi Mahjong. The traditional compass acts as a table centerpiece, used to show seating positions and help keep tiles aligned in straight rows. This digital compass is an evolution of that with many features to help boost gameplay while still keeping the core of the game unchanged. Features include —
- Randomizing the starting dealer
- Automatically updating Seat Wind indicators
- Dice rolling for wall breaks, including a direction arrow to help assist in finding where to begin drawing from
- Automatic Riichi bet tracking
- Honba tracking
- Ability to view score differentials at any time
- Han and Fu calculating to track scores, as well as Exhaustive Draw payments
- Uma calculation for tournament settings
- A built-in timer and stopwatch
- Sanma support (3-player)
What is the Auto-Compass?
The Auto-Compass replaces the traditional physical compass most players use for hand-shuffle Riichi Mahjong. This digital compass does it all for you. It can —
- Shuffle the dealer
- Indicate seat winds and starting dealer
- Show direction and dice roll of where to break the wall
- Indicate the number of riichi sticks on the table
- Track honba
- Show score differences between players
- Calculate Han and Fu, as well as Exhaustive Draw payments
… and more! Future updates to the compass are possible via USB-C connection to a computer.
Built For Everyone…
The Auto-Compass helps keep track of all of the information you might want to know, and can even assist when a situation arises you aren’t prepared for. Missing some point sticks in your Mahjong set? Did some dice fall out the box and get lost the last time you pulled them out to play? No problem! The Auto-Compass does scoring, dice rolling, and dealer indicating for you without the need of the small things that can get lost. The ability to do accurate scoring on-the-spot as well as determine point differences between players makes the Auto-Compass a reliable asset to any Mahjong player still trying to get a grasp of non-automated offline play.
… and Convenient For Veterans
For advanced and tournament players, the Auto-Compass helps speed things up by being able to calculate Uma and score differences at any time. All Last has never been easier to prepare for! An included timer/stopwatch can be toggled for those seeking to add time-pressure to their games.
Built For Everyone…
For beginner to intermediate players, the Auto-Compass helps keeping track of seat wind, round wind, scoring, and more. Missing some point sticks in your Mahjong set or just want to keep things as portable as possible? No problem! The Auto-Compass is here to help, whether you want to play with physical point sticks or not. The ability to double check scoring on-the-spot as well as determine point differences between players makes the Auto-Compass a reliable asset to any Mahjong player still trying to get a grasp of non-automated offline play.
… and Convenient For Veterans
For advanced and tournament players, the Auto-Compass helps speed up the pace of the game, particularly when it comes to confirming correct score amounts and when analyzing score differences between players. Kiriage Mangan, Sanma (3-Player), and the ability to adjust starting scores are all features the Auto-Compass has to offer. No need to wait around while people count sticks and take up valuable time at the table — the Auto-Compass will do all the heavy lifting for you.
Check out the Auto-Compass in action!
NEW FEATURE in June 2026!
Maybe not everyone wants to use all of the features the Auto-Compass has to offer and they want to keep things SIMPLE…
Don’t want to keep track of scoring using a device? Confident in your ability to play without the need of any kind of assistance? Trying to show off to your friends how you have your 20 and 50 fu score tables memorized?
The Auto-Compass now has a “SIMPLE” mode that can be toggled, where everything is stripped from the Compass and the display only shows seat winds and has a dice roll. Nothing else!
This setting is perfect for those who want to rely on their own knowledge of scoring, or who want to jump right into playing without configuring settings or anything like that. This is also great for people who have vastly different house rules, or who… only want a centerpiece to push tiles against. But hey, it’s a really neat centerpiece!
Additional Features
The Default Starting Score value is 25,000, but this can be changed to whatever you want!
Kiriage Mangan, one of the most commonly used house rules, can also be enabled which which will round the scoring for certain threshold Han and Fu combinations for you.
There are features to manually adjust the score of each player to account for Chombos (penalties), party rules, Double Ron, and more. The Auto-Compass will check after any adjustments are made to make sure everyone’s scores equal the correct combined total!
If a Han/Fu combination is accidentally entered incorrectly, an included Undo Last Round feature returns the compass to the previous round’s state.
NEW FEATURE in June 2026!
Maybe not everyone wants to use all of the features the Auto-Compass has to offer and they want to keep things SIMPLE…
Don’t want to keep track of scoring using a device? Confident in your ability to play without the need of any kind of assistance? Trying to show off to your friends how you have your 20 and 50 fu score tables memorized?
The Auto-Compass now has a “SIMPLE” mode that can be toggled, where everything is stripped from the Compass and the display only shows seat winds and has a dice roll. Nothing else!
This setting is perfect for those who want to rely on their own knowledge of scoring, or who want to jump right into playing without configuring settings or anything like that. This is also great for people who have vastly different house rules, or who… only want a centerpiece to push tiles against. But hey, it’s a really neat centerpiece!
Additional Features
When setting up for a game, the players can change the starting score to whatever they would like (the default being 25k).
Kiriage Mangan, one of the most commonly used house rules, can also be enabled which which will round the scoring for certain threshold Han and Fu combinations for you.
There are features to manually adjust the score of each player to account for Chombos (penalties), party rules, Double Ron, and more.
If a Han/Fu combination is accidentally entered incorrectly, an included Undo Last Round feature returns the compass to the previous round’s state.
–FAQ–
- The Auto-Compass screen is a touch screen! All functions beyond turning the device on are done by tapping or holding on the screen.
- The Auto-Compass is 5.5″ x 5.5″ x 0.787″. This size matches the length and width of the Amos brand compass, allowing most standard Riichi tilesets to fit 6-tile-wide rows against it.
- The Auto-Compass works well with any size of tile, but works best with 28mm tiles.
- The Auto-Compass is expected to cost a base price of $120 on launch. Shipping is determinant on location, and bulk ordering for personal or club uses will have reduced pricing.
- The battery takes 3-4 hours to charge from 0%.
- The battery is expected to last for 10 hours of non-stop gameplay.
- Black, Blue, Orange, Green, Red, and Pink!
Stay up to date on the development and release of the Auto-Compass here!