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278 lines
8.0 KiB
HTML
278 lines
8.0 KiB
HTML
<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></meta>
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</head>
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<body>
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<h2>About</h2>
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<p>
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<i>DroidFish</i> is a feature-rich graphical chess user interface, combined with
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the very strong <i>Stockfish</i> chess engine.
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</p>
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<h3>Features</h3>
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<ul>
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<li>Opening book</li>
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<li>Unlimited undo/redo</li>
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<li>Copy/paste to/from clipboard</li>
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<li>Analysis mode</li>
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<li>Two player mode</li>
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<li>Computer vs computer mode</li>
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<li>Setup positions</li>
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<li>Extensive PGN support</li>
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<li>Adjustable playing strength</li>
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<li>Third party UCI engines</li>
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<li>Gaviota endgame tablebases</li>
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<li>Syzygy endgame tablebases</li>
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</ul>
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<h3>Hints</h3>
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<ul>
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<li>
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Long press mode/left/right buttons for additional commands.
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</li>
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<li>
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When re-playing a game, change game mode to <i>Edit/re-play Game</i> to
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be able to undo/redo single half moves.
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</li>
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</ul>
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<h3>Opening books</h3>
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<p>
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DroidFish contains a small internal opening book. If you want to use
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a larger book, you can configure DroidFish to use external <i>polyglot</i>
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or <i>CTG</i> book files:
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</p>
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<ol>
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<li>
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Copy one or more polyglot book files to the <i>DroidFish/book</i> directory on the SD card.
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Polyglot books must have the file extension <i>.bin</i>.
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<b>Note!</b> The Android file system is case sensitive, so the extension must be <i>.bin</i>, not <i>.Bin</i> or <i>.BIN</i>.
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</li>
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<li>
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Copy one or more CTG book files to the <i>DroidFish/book</i> directory.
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A CTG book consists of three files with file extensions <i>.ctg</i>, <i>.ctb</i> and <i>.cto</i>.
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You must copy all three files.
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</li>
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<li>
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From the program menu, activate the <i>Select opening book</i> function.
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</li>
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<li>
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Select the opening book file you want to use.
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</li>
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</ol>
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<h3>PGN files</h3>
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<p>
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DroidFish can load games from PGN files.
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</p>
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<ol>
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<li>
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Copy one or more PGN files to the <i>DroidFish/pgn</i> directory on the SD card.
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</li>
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<li>
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Long press the chess board and select <i>Load game from PGN file</i>.
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</li>
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<li>
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Select the file, then the game within the file you want to load.
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</li>
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</ol>
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<p>
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To edit game headers such as player names, long press the move list and select
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<i>Edit Headers</i>. To edit comments for a move, long press the move list and
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select <i>Edit Comments</i>.
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</p>
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<p>
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To save your edited game, long press the chess board and select <i>Save game to
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PGN file</i>. Select the file to save to, then select the position in the file
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where the new game will be saved.
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</p>
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<p>
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<b>Note!</b> If the <a href="http://play.google.com/store/apps/details?id=org.openintents.filemanager">OI File Manager</a> is installed, any directory can be used to load/save games.
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</p>
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<p>
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To add computer analysis to the game tree, long press the analysis information when the computer is thinking and select <i>Add Analysis</i>.
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The current principal variation is added as a variation in the game tree.
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</p>
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<p>
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In analysis mode, it is possible to add null moves to the game tree. Be aware though
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that null moves are not included in the PGN standard and may not work in other PGN
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reading chess programs.
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</p>
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<h3>Scid files</h3>
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<p>
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If you have <a href="http://play.google.com/store/apps/details?id=org.scid.android">Scid on the go</a> installed, you can read Scid database files directly from DroidFish.
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Long press the chess board and select <i>Load game from Scid file</i>.
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</p>
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<h3>FEN/EPD files</h3>
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<p>
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DroidFish can load positions from FEN/EPD files.
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</p>
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<ol>
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<li>
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Copy one or more FEN/EPD files to the <i>DroidFish/epd</i> directory on the SD card.
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</li>
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<li>
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Long press the chess board and select <i>Load position from file</i>.
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</li>
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<li>
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Select the file, then the position within the file you want to load.
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</li>
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</ol>
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<p>
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You can also load positions from external programs, such as <a href="http://play.google.com/store/apps/details?id=com.kgroth.chessocr">ChessOcr</a> (non-free), which will let you use the camera to take a picture of a chess diagram and automatically set up the position in DroidFish.
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</p>
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<ol>
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<li>
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Long press the chess board and select <i>Retrieve Position</i>.
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</li>
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<li>
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Follow the instructions in the external program.
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</li>
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</ol>
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<h3>UCI engines</h3>
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<p>
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DroidFish can use third party UCI engines.
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</p>
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<ol>
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<li>
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Copy one or more UCI engine binaries to the <i>DroidFish/uci</i> directory on the SD card.
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<b>Note!</b> The binaries must be compiled for Android.
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</li>
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<li>
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From the program menu, choose <i>Manage Chess Engines</i> and <i>Select Chess Engine</i> and select the engine to use.
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</li>
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</ol>
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<h3>UCI engines on a remote server</h3>
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<p>
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DroidFish can use UCI engines that run on a remote server.
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</p>
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<ol>
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<li>
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Install chess network server software on the remote computer.
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<ol>
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<li>
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For windows, install server software from the <a href="http://home.arcor.de/bernhard.wallner/netChess.html">Computer Chess Utility</a> page.
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</li>
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<li>
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For linux, <tt>mini-inetd</tt> from the <tt>tcputils</tt> package can be used.
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</li>
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</ol>
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</li>
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<li>
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Select <i>Manage Chess Engines</i> in the program menu, create a new network engine and enter the host name and port number for the remote engine.
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</li>
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<li>
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From the program menu, choose <i>Manage Chess Engines</i> and <i>Select Chess Engine</i> and select the engine to use.
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</li>
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</ol>
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<h3>Gaviota endgame tablebases</h3>
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<p>
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To use <a href="http://sites.google.com/site/gaviotachessengine/Home/endgame-tablebases-1">Gaviota endgame tablebases</a>:
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</p>
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<ol>
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<li>
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Copy .gtb.cp4 files to the <i>DroidFish/gtb</i> directory on the SD card.
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</li>
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<li>
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Use the <i>Endgame Tablebases</i> preferences screen to control how the tablebases are used.
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</li>
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</ol>
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<h3>Syzygy endgame tablebases</h3>
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<p>
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To use <a href="https://chessprogramming.wikispaces.com/Syzygy+Bases">Syzygy endgame tablebases</a>:
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</p>
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<ol>
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<li>
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Copy .rtbw and optionally .rtbz files to the <i>DroidFish/rtb</i> directory on the SD card.
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</li>
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<li>
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Use the <i>Endgame Tablebases</i> preferences screen to control how the tablebases are used.
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</li>
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</ol>
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<h3>License</h3>
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<p>
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<a href="http://www.gnu.org/licenses/gpl.html">GNU GPL v3</a>
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</p>
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<h3>Developers</h3>
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<ul>
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<li>
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<i>Stockfish</i> is developed by Tord Romstad, Marco Costalba and Joona Kiiski.
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</li>
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<li>
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<i>Droidfish</i> is developed by Peter Österlund.
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</li>
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<li>
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User interface improvements by Aaro Korhonen.
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</li>
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<li>
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Gaviota Tablebases Probing Code API, Copyright © 2010 Miguel A. Ballicora.
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<ul>
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<li>
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LZMA compression by Igor Pavlov.
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</li>
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<li>
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ZLIB compression, Copyright © 1995-2005 Jean-loup Gailly and Mark Adler.
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</li>
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<li>
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LZF compression, Copyright © 2000-2007 Marc Alexander Lehmann.
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</li>
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</ul>
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</li>
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<li>
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SVG reader from <a href="http://code.google.com/p/svg-android/">svg-android</a> project.
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</li>
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<li>
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Color picker, Copyright © 2010 Daniel Nilsson and Copyright © 2011 Sergey Margaritov.
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</li>
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<li>
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Open exchange chess engine interface code by Gerhard Kalab, <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache 2.0 license</a>.
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</li>
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<li>
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Syzygy tablebases probing code, Copyright © 2011-2013 Ronald de Man.
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</li>
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</ul>
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<h3>Translations</h3>
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<p>
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Translations are managed by <a href="http://crowdin.net/project/droidfish-android-chess-app">crowdin.net</a>.
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</p>
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<ul>
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<li>
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German translation by Uwe Walschus.
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</li>
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<li>
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Spanish translation by Amador Cuesta.
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</li>
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<li>
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Russian translation by SWEN и dfuk (allBlackBerry).
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</li>
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<li>
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Portuguese translation by C. R. Zamana.
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</li>
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<li>
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French translation by Eric Weibel (Thanvillé).
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</li>
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<li>
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Italian translation by Michele Carfora (suessola).
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</li>
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<li>
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Dutch translation by David Pront.
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</li>
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<li>
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Polish translation by Rafał Smyka.
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</li>
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</ul>
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</body>
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</html>
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