Definition of fianchetto in English:

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Pronunciation: /ˌfēənˈCHetō/ /-ˈketō/

noun (plural fianchettoes)

The development of a bishop by moving it one square to a long diagonal of the board.
Example sentences
  • Black prepares the extended fianchetto of his light Bishop with… b7-b5.
  • Nigel quite rightly recognizes that setups based on g3, Bg2 and - don't offer much versus 1… c5 and 2… g6 as the White Knight on f3 costs flexibility, allowing Black good play with a kingside fianchetto and either… e5 or… e6.
  • It would be nice if this could be truly a ‘one scheme fits all’ approach to the Sicilian; alas, there are lines where the kingside fianchetto is hard to achieve (or is not worth achieving).

verb (fianchettoes, fianchettoing, fianchettoed)

[with object]
Develop (a bishop) by moving it one square to a long diagonal of the board.
Example sentences
  • Gelfand fianchettoed his dard-squared bishop, Anand exchanged a few pieces and suggested a draw on move 21.
  • In each you'll see Black trying to break the shackles by fianchettoing his queen's Bishop and endeavoring to break in the center with… d7-d5.
  • The book concludes with a twelve page chapter on other Stonewalls and sixteen pages on lines where white plays e2-e3 rather than fianchettoing his king bishop.


Mid 19th century: from Italian, diminutive of fianco 'flank', ultimately of Germanic origin. Compare with flank.

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