Washable mahjong game matHarvard‑and‑mit‑area‑student‑cultural‑clubs‑inside‑Cambridge‑arrange‑popular‑mahjong‑social‑nights‑that‑attract‑diverse‑student‑participants‑eager‑to‑learn‑new‑game‑skills‑and‑meet‑other‑like‑minded‑table‑game‑hobby‑lovers‑on‑university‑campus‑grounds.