mahjong 138Research shows that mahjong and similar puzzles, including mahjong solitaire, stimulate brain activity, enhance memory, and improve concentration. It is an excellent way to train strategic thinking and problem-solving skills. MahjongMahjong Princess · Dragon Chi's Quest · Aztec: Bonus Hunt 2 · Mahjong Phoenix · Roma · GODS GRANT FORTUNE · QUEEN OF INCA · Mahjong Wins 2 · Maya: Elemental