What are the mahjong rules for 2 players and how do they differ from playing with more players?

In mahjong for 2 players, each player starts with 16 tiles and the goal is to form a winning hand by drawing and discarding tiles. The main difference from playing with more players is that there are fewer tiles in the game, making it more challenging to form winning hands. Additionally, the scoring and strategies may vary slightly in a 2-player game compared to a game with more players.