"Combine 2 of the same mahjong stones to remove them from the playing field. You only can use free stones. A free stone is not covered by another stone and at least 1 side (top or bottom) is open.",
This game is hosted by Plays.org, a free online arcade hosting dozens of exiting and enjoyable HTML 5 mini-games. This game is rendered in mobile-friendly HTML5, so it offers cross-device gameplay. You can play it on mobile devices like Apple iPhones, Google Android powered cell phones from manufactures like Samsung, tablets like the iPad or Kindle Fire, laptops, and Windows-powered desktop computers. All game files are stored locally in your web browser cache. This game works in Apple Safari, Google Chrome, Microsoft Edge, Mozilla Firefox, Opera and other modern web browsers.