---
tag: 7KSBATJZZG
kind: concept
name: Waiter–Client game
aliases: [chooser-picker-game, picker-chooser-game]
sources:
  - wikipedia: en:58928004@r1368303546
    locator: Waiter–Client game
    note: adopted
    mention: wikipedia://en/58928004
    sections: [Summary]
same_as:
  wikidata: Q60791324
  wikipedia: Waiter–Client game
inventory: [11QBC0DBG5]
---

## Summary

A **Waiter-Client game** (also called: **Picker-Chooser game**) is a kind of positional game. Like most positional games, it is described by its set of *positions/points/elements* ($X$), and its family of *winning-sets* ($\mathcal{F}$- a [[family of subsets|05Q6G4EH2G]] of $X$). It is played by two players, called Waiter and Client. Each round, Waiter picks two elements, Client chooses one element and Waiter gets the other element (similarly to the Divide and choose protocol).