Bagatur Chess Engine

Bagatur Chess Engine is a board game application developed by Krasimir Topchiyski, packaged as a single Android APK of version 1.3 weighing in at 10.39 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

1. Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
2. File size is a light 10.39 MB, so it installs quickly even on modest connections.
3. This build is signed by "Krasimir Topchiyski" — always verify the developer name matches what's listed on the app's official store page before installing an update.
4. After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
5. We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

This is the open source Bagatur Chess Engine with its own GUI (graphical user interface).

It is not as strong as Stockfish, Komodo, AlphaZero or Leela Chess Zero, but is strong enough to beat a grandmaster.

It has 16 strength levels. From level 5, it could show the search information.

The ELO rating is about 3000 and the program has a unique playing style.

In general, the application demonstrates an application of artificial intelligence (AI) into the domain of chess.

To clarify, it is not an OEX chess engine and other chess engines cannot be imported into the GUI.

Playing instructions:

1. Check the menu and make sure the strength level is appropriate.


2. Select/deselect the Human/Computer buttons for both sides according to which side you want to play and whether you play against a computer or another person.


3. Use the flip board button to change sides if you play with black.


4. Move the piece by drag and drop or by selecting from/to squares.


5. If you want, you could use the move navigation buttons to go back and forward in the move sequence.


6. It is recommended to check all settings in the menu and make sure you play with the option you like most (e.g. move animation speed, chess pieces set, colors).

Features:

1. FEN import/export/share.


2. Different modes: Human-Human, Human-Bagatur, Bagatur-Bagatur.


3. Different strengths levels.


4. The app could show the best moves line as well as the evaluation of the board position produced by Bagatur.


5. Navigation of played move's (first, previous, next, last).


6. Flipboard function.


7. Moving by drag and drop as well as by selecting from and to squares.


8. Supports different color palettes and chess pieces sets for different tastes.

Permissions:

The app uses ACCESS_NETWORK_STATE and INTERNET permsisions, because it shows home ads and they open the default browser on the device, going to one of our other apps' page on the store or on the website of Metatrans Apps.
To be more precise, if the other app is available on the store, from which the app is downloaded, then opens the app page of the other app on the same store. If still the app is not available on the store, then opens the app page on our website.
The app pages on our website have app demo video on YouTube, so a connection to youtube domain will also be listed in order to visualize the page in the browser.
Our website is created by WordPress, so connections to other domains could be opened as well for technical purposes (e.g. downloading text fonts css).

Your feedback and/or review is more than welcome.

Is Bagatur Chess Engine free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does Bagatur Chess Engine require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is Bagatur Chess Engine safe to install?
We link to the exact APK published by Krasimir Topchiyski. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update Bagatur Chess Engine?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

1. Tap the Download APK button above and save the file to your device.
2. Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
3. Open the downloaded com.bagaturchess.apk file from your Downloads folder.
4. Tap Install and wait for Android to finish.
5. Open «Bagatur Chess Engine» by Krasimir Topchiyski and grant only the permissions it actually needs.
6. Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.