Android Market

When playing the Reaktion game, the game player’s “Reaction” time is challenged and tested in a simple, fun, and very fascinating way. During the Reaktion game’s play time, nine touch buttons are displayed in Reaktion’s game field on the Android based smartphone’s display. During game play, Reaktion’s nine different touch buttons are illuminated in various colors and in real time and order sequence. Reaktion gives the game player a limited amount of time to touch the illuminated buttons after they are displayed. As the game player plays the Reaktion game, the time that the player is allowed to react to the touch buttons that light up gets shorter and shorter. When the Reaktion game player is not able to react to the colored touch buttons as they are displayed in the time interval set by Reaktion, the game player loses the match against Reaktion and the game is over. Reaktion is easy to play and a challenge to master. Individual game players and groups of game players who take on the Reaktion game challenge can not resist playing the game. In group game play, each game player who plays the game tries to have the fastest Reaktion game time.

Chess for Android consists of a chess engine (derived from BikJump) together with a GUI (thanks to Joseph Wain for designing the chess graphics). The application accepts moves through the touch screen, the trackball, or through the keyboard (viz. e2e4 pushes the king pawn, e1g1 castles king side, etc.). The GUI gives the option to highlight the last played engine move as well as all valid moves for a selected piece during a user move. A pawn promotion prompts the user to define the desired destination piece. The GUI supports an undo feature, where up to eight plies (half-moves) can be taken back to correct mistakes, and recognizes draw by either the fifty move rule or a simplified form of threefold repetition. The engine plays at various levels (including random, against itself in auto-play, or free-play, where the phone can be used as a “magnetic chessboard” to study games or play a game up to a position for further play with the chess engine).