Royal fianchetto

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1. g2-g3

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The King's Fianchetto is an opening in the game of chess . It starts with the first move 1. g2 – g3 and is classified in the ECO codes under the key A00. Transitions to other openings are often achieved by changing trains .

The difference to the Réti opening or the King's Indian attack are often the lines in which both White and Black neglect the thematic move Ng1 – f3 in modern defense and only play Bf1 – g2, whereby he reserves the option of a later Ng1 – f3 .

This opening is seldom played among the world's elite, as blacks have a relatively free hand in their figure development. The German grandmaster Jörg Hickl is an advocate of the king's fianchetto . In the English-speaking world, the king's fianchetto is also called "Benko Opening" or "Benko's Opening", after the Hungarian-American chess player Pál Benkő , who used this opening several times in the middle of the 20th century. Occasionally Bent Larsen also used 1. g2 – g3.

In the game Réti - Alekhine, Baden-Baden 1925 1. g2 – g3 e7 – e5 2. Ng1 – f3 led to Alekhine's defense with reversed colors.

The term Fianchetto (Italian for the "side gate" -open-) alone means the placement of a bishop on a wing (king or queen wing), which is made possible by raising the b or g pawn. One also speaks colloquially of “fianching” a runner (here: the king runner).