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An independence problem (or unguard [citation needed]) is a problem in which, given a certain type of chess piece (queen, rook, bishop, knight or king), one must find the maximum number that can be placed on a chessboard so that none of the pieces attack each other. It is also required that an actual arrangement for this maximum number of ...
The eight queens puzzle is the problem of placing eight chess queens on an 8×8 chessboard so that no two queens threaten each other. Learn about the history, solutions, and algorithms of this classic problem.
The independence number and domination number of a rook's graph both equal the smaller of the chessboard's width and height. In terms of chess, the independence number is the maximum number of rooks that can be placed without attacking each other; the domination number is the minimum number needed to attack all unoccupied board squares.
In mathematics, a queen's graph is an undirected graph that represents all legal moves of the queen—a chess piece—on a chessboard.In the graph, each vertex represents a square on a chessboard, and each edge is a legal move the queen can make, that is, a horizontal, vertical or diagonal move by any number of squares.
Another version has the inventor of chess (in some tellings Sessa, an ancient Indian Minister) request his ruler give him wheat according to the wheat and chessboard problem. The ruler laughs it off as a meager prize for a brilliant invention, only to have court treasurers report the unexpectedly huge number of wheat grains would outstrip the ...
A chess problem is a puzzle set by the composer using chess pieces on a chess board, which presents the solver with a particular task. Learn about the different types of chess problems, such as directmates, helpmates, selfmates, seriesmovers and studies, and their features and examples.
Franklin was an avid chess player. He was playing chess by around 1733, making him the first chess player known by name in the American colonies. [282] His essay on "The Morals of Chess" in Columbian Magazine in December 1786 is the second known writing on chess in America. [282]
Learn how to record and describe chess moves using algebraic notation, a standard system based on coordinates and piece symbols. Find out the history, rules, and variations of this notation, as well as similar notations and annotation symbols.
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