Black and White Mahjong
Although this looks like the classic Mahjong with the familiar layout, tiles can only be matched for elimination if (as usual) the characters are the same, but in this version one tile must be white and the other black. This needs a subtle change in mindset for the player who is used to playing the normal version of Mahjong. There are multiple levels with increasing dificulty; Hint and Reshuffle buttons help the player to solve the puzzle. Excellent graphics!