Deduction board game are drawn at random. Notable members of this category include "Black Box" and "Master Mind". Investigation games are board games in which the players generally play as police, detectives or other investigators. The best known game of this type is "Cluedo". In fact, many of games in this category utilize a mechanic known as "The Missing Card," which was developed by Anthony E. Pratt for "Cluedo" ("Clue" in the United States). "The Missing Card" takes a known set of cards (or other token) and removes one or more of them. By gathering information and using deduction and logic, the players
Indigo (board game) Indigo (board game) Indigo is a 2012 board game developed by Reiner Knizia and published by Ravensburger. "Indigo" is a game for two to four players. The idea of the game is to collect jewels from the board by laying tiles. The board takes the form of a hexagonal grid, with one tile present at the centre and six at the edge, with even intervals. The rest of the board is empty. On the centre tile are six jewels: one sapphire and five emeralds. The six tiles at the edge have one topaz each. The edges of the board between