<p>This is the open source <i>Bagatur Chess Engine</i> with its own GUI (graphical user interface).</p> <p>It is not as strong as Stockfish, Komodo, AlphaZero or Leela Chess Zero, but is strong enough to beat a grandmaster.</p> <p>It has 16 strength levels. From level 5, it could show the search information.</p> <p>The ELO rating is about 3000 and the program has a unique playing style.</p> <p>In general, the application demonstrates an application of artificial intelligence (AI) into the domain of chess.</p> <p>To clarify, it is not an OEX chess engine and other chess engines cannot be imported into the GUI.</p> <p><br><b>Playing instructions:</b></p> <ol> <li>Check the menu and make sure the strength level is appropriate.</li> <li>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.</li> <li>Use the flip board button to change sides if you play with black.</li> <li>Move the piece by drag and drop or by selecting from/to squares.</li> <li>If you want, you could use the move navigation buttons to go back and forward in the move sequence.</li> <li>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).</li> </ol> <p><br><b>Features:</b></p> <ol> <li>FEN import/export/share.</li> <li>Different modes: Human-Human, Human-Bagatur, Bagatur-Bagatur.</li> <li>Different strengths levels.</li> <li>The app could show the best moves line as well as the evaluation of the board position produced by Bagatur.</li> <li>Navigation of played move's (first, previous, next, last).</li> <li>Flipboard function.</li> <li>Moving by drag and drop as well as by selecting from and to squares.</li> <li>Supports different color palettes and chess pieces sets for different tastes.</li> </ol> <p><br><b>Permissions:</b></p> <p>The app uses ACCESS_NETWORK_STATE and INTERNET permsisions, beca