Jieqi as know as Dark Chess or Blind Chess is the special extension of Chinese Chess (Xiangqi). Now you can play it on your mobile device with milion of player on over the world via online feature. There are two type of game: Dark Chess and Chinese Chess, we use ELO calculating system to determine who are the grand master.

Some special features in game:
- Play with no cost, no gold in game.
- Invite players to join room, the system will find the player which has nearest elo with you.
- Switch room if you don't like opponent.
- Follow and view best match of the players.
- Find your friends.
- View the on playing match, join and watch the match.
- View the best match in history.
- Leaderboard shows best of the best players.
- Can view player information.
- You can request undo to your opponent.
- Build in chat system.
- Review your match history.
- Show player avatar and country.
- Sign in with guest login or your account.
- Can use more than 20 template avatars or use your your own avatar.
- Rules to explain the game.
- See all the possible and impossible moves when selecting a piece.
- Can personalize many piece themes and board themes.
- Great animation and moving effect.
- Amazing UI with exellent graphics.
- Pretty sound and music.
- Multilingual: English, Vietnamese.

Enjoy right now!

// Option A //

To download Co Up Online - Dark Chess mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Co Up Online - Dark Chess mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Co Up Online - Dark Chess from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Co Up Online - Dark Chess in HappyMod App.