Kriegspiel (chess) illegal, the player tries again; if it is legal, that move stands. Each player is given information about checks and captures. They may also ask the referee if there are any legal captures with a pawn. Since the position of the opponent's pieces is unknown, Kriegspiel is not a game with perfect information. As each player cannot see his opponent's pieces, the game is sometimes referred to as "blind chess". There are several different rule sets for Kriegspiel. The most widespread rules are those used on the Internet Chess Club, where Kriegspiel is called "Wild 16". The rules are as
Game of the Three Friends Game of the Three Friends Game of the Three Friends (Chinese: , "Sān-yǒu-qí" ; also called Sanyou Qi or Three Friends Chess) is a three-player variant of the game xiangqi ("Chinese chess"). It was invented by Zheng Jinde (Chinese: , "Zhèng Jìndé") during the Qing Dynasty (1661–1722 AD). The game symbolizes the Three Kingdoms period war (221–264 AD) between the rival states Wei, Shu, and Wu, each vying for control of China after the fall of the Han Dynasty. The Three Friends are represented by colors blue, red, and green, respectively. Each player controls all the standard xiangqi pieces, with