You can enjoy high-quality Janggi with high-performance AI.
With two powerful engine: Stockfish and Rangy, you can easily learn Janggi according to your skill.

Try PC version https://gekomad.github.io/rangy_master.

Options and Features
- Janggi puzzle.
- You can select 7 levels from random to Master.
- You can use backward and forward function.
- You can use the hint function.
- Open book.
- Game data is automatically saved, so you can try to reproduce it at any time.
- Ponder.
- Graph.
- Classic and western board.
- You can add position to favourites.
- Show annotation symbols ??, ?, ?!, !?, !, and !!.
- Analyzer function.
- You can change background theme and pieces.
- Hash table up 512 MB.
- You can start the game from a specific position.
- You can change background theme and pieces image.
- You can import a PGN
- Supports human vs. human game for game save.
- Supports pieces-score display function.

Janggi Master App and Rangy Janggi Engine were co-developed by Giuseppe Cannella and Seungcheon Baek.
Korean e-mail is [email protected].