JavaFX Game- Link Up

Liu Xuan has developed another JavaFX game, LinkUp . This is a game of fun, especially for kids, and had been implemented in many languages and platform, such as flash and java. It is simple to play the game: look for two identical images and eliminate them. There must be a path connecting the two images and the path must have no more than two turns.
Like in any games, visual effect and algorithms are two key elements.