Portal:Chess

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Introduction

Left to right: white king, black rook, black queen, white pawn, black knight, white bishop

Chess is a board game for two players. It is an abstract strategy game that involves no hidden information and no elements of chance. It is played on a square board consisting of 64 squares arranged in an 8×8 grid. The players, referred to as "White" and "Black", each control sixteen pieces: one king, one queen, two rooks, two bishops, two knights, and eight pawns, with each type of piece having a different pattern of movement. An enemy piece may be captured (removed from the board) by moving one's own piece onto the square it occupies. The object of the game is to "checkmate" (threaten with inescapable capture) the enemy king. There are also several ways a game can end in a draw.

The recorded history of chess goes back to at least the emergence of chaturanga—also thought to be an ancestor to similar games like xiangqi and shogi—in seventh-century India. After its introduction in Persia, it spread to the Arab world and then to Europe. The modern rules of chess emerged in Europe at the end of the 15th century, with standardization and universal acceptance by the end of the 19th century. Today, chess is one of the world's most popular games, with millions of players worldwide.

Organized chess arose in the 19th century. Chess competition today is governed internationally by FIDE (Fédération Internationale des Échecs), the International Chess Federation. The first universally recognized World Chess Champion, Wilhelm Steinitz, claimed his title in 1886; Gukesh Dommaraju is the current World Champion, having won the title in 2024. (Full article...)

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Triangulation is a tactic used in chess to put one's opponent in zugzwang (a position in which it is a disadvantage to move). Triangulation is also called losing a tempo or losing a move.

Triangulation occurs most commonly in endgames with only kings and pawns when one king can maneuver on three adjacent squares in the shape of a triangle and maintain the basic position while the opposing king only has two such squares. Thus, if one king triangulates by using three moves to return to the original square and the opposing king cannot do the same, he has lost a crucial tempo and reached the same position with the other player to move. Triangulation can occur in other endgames and even in some middlegames.

This article uses algebraic notation to describe chess moves.

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General images

The following are images from various chess-related articles on Wikipedia.

Image 1Lucas van Leyden, c. 1508, The Game of Chess, oil on oak, 27 x 35 cm, Gemäldegalerie, Berlin (from Chess in the arts)
Image 2An illustration from a Persian manuscript "A treatise on chess". The Ambassadors from India present the Chatrang to Khosrow I Anushirwan, "Immortal Soul", King of Persia. (from History of chess)
Image 3Chess game between Tha'ālibī and Bākhazarī, 1896 painting by Ludwig Deutsch (from History of chess)
Image 4Niccolò di Pietro, 1413–15, The Conversion of Saint Augustin, Musée des Beaux-Arts, Lyon (from Chess in the arts)
Image 5Honoré Daumier, 1863, The Chess Players (from Chess in the arts)
Image 6Stamp of the USSR devoted to the accomplished Estonian player and analyst Paul Keres, 1991 (from History of chess)
Image 7Some of the earliest examples of chess-related art are medieval illustrations accompanying books or manuscripts, such as this chess problem from the 1283 Libro de los juegos. (from Chess in the arts)
Image 8A Chess Dispute (1903) (from Chess in the arts)
Image 9Hans Muelich, 1552, Duke Albrecht V. of Bavaria and his wife Anna of Austria playing chess (from Chess in the arts)
Image 10Iranian shatranj set, glazed fritware, 12th century, New York Metropolitan Museum of Art (from History of chess)
Image 11World Champions José Raúl Capablanca (left) and Emanuel Lasker in 1925 (from History of chess)
Image 12Moors from Andalusia playing chess, Book of Games by King Alfonso X, 1283 (from Chess in the arts)
Image 13Iranian courtiers of the Qajar dynasty playing chess in Mazandaran (from History of chess)
Image 14Bobby Fischer vs. Mikhail Tal (from History of chess)
Image 15Final match of the 1575 tournament in El Escorial. Painting by Luigi Mussini. (from History of chess)
Image 16Chess Set by Man Ray (from Chess in the arts)
Image 17RZA at a Hip Hop Chess Federation Tournament (from Chess in the arts)
Image 18These seven ivory chess pieces are the oldest known, dating to about 700 CE. The ivory came from India. They were excavated in 1977 by archaeologist Yuriy Buryakov, at Afrasiyab in Samarkand, Uzbekistan. They are housed today at the Samarkand State Museum. Photographed during a loan of the pieces to the Silk Roads Exhibition at the British Museum. (from History of chess)
Image 19Animation of the Immortal Game, in which Adolf Anderssen, playing White, beat Lionel Kieseritzky in June 1851 (from History of chess)
Image 20Edward Harrison May, 1867, Lady Howe mating Benjamin Franklin (from Chess in the arts)
Image 21Book of the customs of men and the duties of nobles or the Book of Chess (1473) (from Chess in the arts)
Image 22Paris Bordone, c. 1545, Chess players, oil on canvas, Mailand, Wohnhaus (from Chess in the arts)
Image 23Antonis Mor, 1549, Von Sachsen vs. a Spaniard (from Chess in the arts)
Image 24Bauhaus chess set by Josef Hartwig (from Chess in the arts)
Image 25Shams-i Tabrīzī as portrayed in a 1500 painting in a page of a copy of Rumi's poem dedicated to Shams (from History of chess)
Image 26Liberale da Verona, The Chess Players, c. 1475 (The Metropolitan Museum of Art) (from Chess in the arts)
Image 27John Lavery, 1929, The Chess Players (from Chess in the arts)
Image 28Current world champion Gukesh Dommaraju (from History of chess)
Image 29Sofonisba Anguissola, The Chess Game, 1555, National Museum, Poznań, Poland (from Chess in the arts)
Image 30Thomas Eakins, 1876, The Chess Players (from Chess in the arts)
Image 31Two Georgian writers, Ilia Chavchavadze and Ivane Machabeli, playing chess in Saint Petersburg, 1873 (from Chess in the arts)
Image 32Gustaf Lundberg, 1775, Portrait of Gustav Badin, pastel, 74 x 57 cm, Nationalmuseum, Sweden (from Chess in the arts)
Image 33Krishna and Radha playing chaturanga on an 8×8 ashtāpada (from History of chess)
Image 34Richard Creifelds, c. 1886, The Veterans, Brooklyn Museum (from Chess in the arts)
Image 35The 12th-century Lewis chessmen in the collection of the National Museum of Scotland (from History of chess)
Image 36In 1975, former President of Pakistan Zulfi Bhutto gifted a carved ivory set of chess to the former United States President Gerald Ford. (from Chess in the arts)
Image 37Karel van Mander, 1600 (attributed to), Les joueurs d'échecs (from Chess in the arts)
Image 38Persian manuscript from the 14th century describing how an ambassador from India brought chess to the Persian court (from History of chess)
Image 39The Chess Players by Henry Fox Talbot, 1847 (from History of chess)
Image 40Wilhelm Steinitz, the first official World Chess Champion (from History of chess)
Image 41Moors from Andalusia playing chess, Book of Games by King Alfonso X, 1283 (from History of chess)
Image 42Cocowood chess set (Philippines craft) (from Chess in the arts)

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FIDE world ranking

Rank	Player	Rating
1	Magnus Carlsen	2837
2	Hikaru Nakamura	2804
3	Arjun Erigaisi	2782
4	Fabiano Caruana	2777
5	Gukesh Dommaraju	2776
6	Nodirbek Abdusattorov	2767
7	R Praggnanandhaa	2767
8	Alireza Firouzja	2766
9	Wei Yi	2758
10	Ian Nepomniachtchi	2757
11	Aravindh Chithambaram	2749
12	Anish Giri	2748
13	Shakhriyar Mamedyarov	2746
14	Wesley So	2745
15	Viswanathan Anand	2743
16	Levon Aronian	2742
17	Vladimir Fedoseev	2739
18	Leinier Domínguez Pérez	2738
19	Maxime Vachier-Lagrave	2736
20	Hans Niemann	2736

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