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Tablebases do not consider the 50- or 75-move rules, so a position that is a theoretical win according to the tablebases may be a draw in over-the-board chess. Such a position is sometimes termed a "cursed win" (where mate can be forced, but it runs afoul of the 50-move rule), or a "blessed loss" from the perspective of the other player. [9]
The first known publication of chess rules was in a book by Luis Ramírez de Lucena about 1497, shortly after the movement of the queen, bishop, and pawn were changed to their modern form. [111] Ruy López de Segura gave rules of chess in his 1561 book Libro de la invencion liberal y arte del juego del axedrez. [112]
In chess, there are a number of ways that a game can end in a draw, in which neither player wins.Draws are codified by various rules of chess including stalemate (when the player to move is not in check but has no legal move), threefold repetition (when the same position occurs three times with the same player to move), and the fifty-move rule (when the last fifty successive moves made by both ...
Chess tactics – a chess tactic is a move or sequence of moves which may result in tangible gain or limits the opponent's options. Tactics are usually contrasted with strategy, in which advantages take longer to be realized, and the opponent is less constrained in responding.
Such a position is sometimes termed a "cursed win" (where mate can be forced, but it runs afoul of the 50-move rule), or a "blessed loss" from the perspective of the other player. [47] In 2013, ICCF changed the rules for correspondence chess tournaments starting from 2014; a player may claim a win or draw based on six-man tablebases. [48]
Marseillais chess (or Two-move chess): After the first turn of the game by White being a single move, each player moves twice per turn. Monster chess (or Super King): White has the king and four pawns (c2-f2) against the entire black army but may make two successive moves per turn. There is no check. Players win by capturing the king.
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A game of chess can end in a draw by agreement.A player may offer a draw at any stage of a game; if the opponent accepts, the game is a draw. [1] In some competitions, draws by agreement are restricted; for example draw offers may be subject to the discretion of the arbiter, or may be forbidden before move 30 or 40, or even forbidden altogether.