You’re probably reading this on a phone right now. But a growing number of New Yorkers have put their devices down — and picked up tiles instead. Mahjong, the four-player strategy game with roots in 19th-century China, is in the middle of a genuine American revival. Game cafes, private clubs and bar nights centered on mahjong have been multiplying across the city, drawing players in their twenties and thirties who have little interest in the retirement-home reputation the game once carried. The appeal isn’t complicated: four people, one table, no notifications. In an era defined by fragmented attention and passive entertainment, that has become a selling point all on its own. A game with real staying power Mahjong has been played across China and much of East and Southeast Asia for well over a century. It blends memory, pattern recognition and calculated risk — closer to poker in its strategic depth than most people expect on first encounter.…