When searching, remember, a few words are better than many
ID114-Joker Exchange From Own Rack Gives Mah Jongg
Question: What is a Finesse Move?
Answer: When a player executes a Joker exchange from their own rack during their last move, it is considered a self-picked win and everyone pays double to that player. This tactical move is commonly known as a “Finesse Move.”
Source: Mah Jong Made Easy 2024, pg. 23, #7