Los Alamos chess is a reduced form of chess played on a board of six squares by six, with the bishops removed from each army. The rules follow ordinary chess apart from three simplifications: a pawn may not advance two squares on its first move, there is no castling, and there is no en passant capture. The Ludii portal of the Digital Ludeme Project credits the design to Paul Stein and Mark Wells, dates its creation to 1956, and also lists the alternative name Anti-clerical Chess. The same source records that it was the first chess game played by a computer program, at the Los Alamos Scientific Laboratory in 1956. It is classed there as a modern board game of the war, replacement and checkmate families and as a chess variant, and the portal lists Chess, Double Chess and Spartan Chess among its similar games.
Facts
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Game Type (category) Classification
Player Count Connections
Derived From
Chess, Games Source Ludii Portal record for Los Alamos Chess
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Source Futility Closet: Los Alamos ChessIntroductionQuote, Introduction
written for the MANIAC I by Paul Stein and Mark Wells at Los Alamos Scientific Laboratory in 1956
Sources
1. Ludii Portal: Concepts for Game Los Alamos Chess
Ludii PortalConcepts, NumPlayersQuote, Concepts, NumPlayers
NumPlayers (2)
2. Ludii Portal record for Los Alamos Chess
Description, basis for the prose
Los Alamos Chess is a Chess variant played on a 6x6 board without bishops.
Description
Los Alamos Chess is a Chess variant played on a 6x6 board without bishops.
Description, first sentence
Los Alamos Chess is a Chess variant played on a 6x6 board without bishops.
Creation date, 1956 sentence
It was the first Chess game played by a computer program at the Los Alamos Scientific Laboratory in 1956.
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