Click the 'Pairs' button to toggle between 'Pairs' and 'Triples'; this determines whether two or three upturned cards must match.
Click the 'Animate' button to toggle between 'Animate' and 'Instant'; this determines whether cards are animated when they are flipped.
Click the 'Pattern 0' button to choose the pattern number; the displayed number determines the pattern that is shown on the backs of the cards.
Click the 'Help' button to display this help text; touch the screen to exit.
Click the 'Pics' button to display all the pics that are defined; touch the screen to exit.
Click any 'N cards' button to start a new game with the indicated number of cards.
While playing, the upper-left corner shows the number of moves, the number of matches that have been found, and the total number of matches that must be found. The upper-right corner shows the elapsed time. The 'Home' button (top, center of screen) must be pressed twice to exit; this behavior prevents accidental clicks while playing.
This program is Free Software. Source: https://github.com/deverac/concentration-game