Katuranga

About Katuranga

Katuranga is an online chess game built in Indonesia. It runs straight in the browser on this site, and as an Android app.

The game

Chess — the same rules as chess anywhere, the same 8×8 board and the same pieces. What Katuranga provides is opponents, a clock, and an explanation once the game is over:

Play the botA tamed Stockfish at many strengths, from absolute beginner to far above club level. Clock optional.

Online duelsReal opponents with a real chess clock and a rating that moves after every game.

PuzzlesPositions from real games: find the one move that wins. The ladder rises with your points.

Daily chessOne move a day — for people who cannot sit down for ten minutes at a stretch.

CoursesGraded classes from how the pieces move to the endgame, with exercises answered on the board.

Analysis & AI CoachYour own games taken apart by the engine: which move changed things, and what to play instead.

Events & tournamentsEvent calendar, Swiss and knockout tournaments, standings per round, leaderboards down to district level.

ClubsGroups of players with their own treasury, shop and activity board.

No account yet? See how to start — signing up is free and you do not need to install anything to try it.

Where you can play

Website	katuranga.com — runs fully in a phone or desktop browser, with nothing to install.
Android	The Katuranga app (`id.katuranga.app`) — app page.
iOS	Not available yet. Until the app ships, iPhone players play in the browser on this site.
Account	One account everywhere: games, rating and purchases follow the account, not the device.

How we make money

Playing itself is free and stays free. What costs money are the study tools that are expensive to run (the analysis engine, the master game collection, the AI coach) and decorative items inside the game:

Premium & Pro plans — monthly or yearly subscriptions. Details on the Pricing page.
Gold — in-game credit used to buy items in the Shop.
Digital items — boards, piece sets, backgrounds and effects. Decoration only; none of it makes a piece stronger.

There are no ads, no data sales, and no physical goods to ship. Everything sold is a digital product that becomes active in the buyer's account immediately.

Payments on the website are processed by Midtrans; purchases inside the Android app go through Google Play. Katuranga never stores card numbers.

Who runs it

Business name	Katuranga - Chess League
Legal form	Sole proprietorship, based in Bekasi Regency, West Java, Indonesia
Service	Online chess playing & learning platform (digital products)
Contact	support@katuranga.com — see the Contact page
Operating since	2026

The name "Katuranga" comes from chaturanga, the Indian game modern chess descends from — the story is in History of Chess.

Our own house rules

Cheating is not tolerated. Engine-assisted games are flagged, the rating is returned, and the account is acted on.
Money must be legible. Prices are computed on the server, never sent from the browser; every purchase has an order number and a history entry in the account.
Only the data we need. What we store and why is in the Privacy Policy; accounts can be deleted by their owner.
Children play here too. No gambling, no betting, no free-form chat between players.

Last updated 23 September 2026.