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In chess, an X-ray or X-ray attack is a tactic where a piece indirectly controls a square from the other side of an intervening piece. Generally, a piece performing an X-ray either: effects a skewer, [1] [2] [3] indirectly attacks an enemy piece through another piece or pieces, or
In chess, a skewer is an attack upon two pieces in a line and is similar to a pin.A skewer is the opposite of a pin; the difference is that in a skewer, the more valuable piece is the one under direct attack and the less valuable piece is behind it.
The opening's name is thought to originate either from Chess.com user "Lenny_Bongcloud", who used the opening with little success, [1] or more generally in reference to a bong, a device used to smoke cannabis, humorously implying that one would need to be intoxicated to think that using the opening is a legitimate strategy.
The Durkin Opening (also known as the Durkin Attack or the Sodium Attack) is a rarely played chess opening that consists of the following move: 1. Na3. The Durkin Opening is named for Robert T. Durkin (1923–2014) of New Jersey. The name "Sodium Attack" comes from the algebraic notation 1.Na3, as Na is the chemical symbol for the element sodium.
Schematic representation: (1) Video camera; (2) Shroud; (3) Video monitor; (4) Clear glass or beam splitter; (5) Image from subject; (6) Image from video monitor. A teleprompter, also known as an autocue, is a display device that prompts the person speaking with an electronic visual text of a speech or script.
The Brains in Bahrain was an eight-game chess match between human chess grandmaster, and then World Champion, Vladimir Kramnik and the computer program Deep Fritz 7, held in October 2002. The match ended in a tie 4–4, with two wins for each participant and four draws , worth half a point each.
The Stonewall Attack is a chess opening characterized by White playing pawns to d4 and e3, bishop to d3, knight to d2, and then completing the Stonewall structure by playing pawns to c3 and f4. This set-up is usually achieved by a 1.d4 move order but transposition is also possible via Bird's Opening , 1.f4.
The Napoleon Opening is named after the French general and emperor Napoleon Bonaparte, who had a deep love of chess but was said to be a mediocre player. [1] The name came into use after mid-nineteenth century publications reported [2] that he played this opening in an 1809 game [3] that he lost to The Turk, a fake chess automaton operated at the time by Johann Allgaier.