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  2. Bird's Opening - Wikipedia

    en.wikipedia.org/wiki/Bird's_Opening

    Bird's Opening (or the Dutch Attack) is a chess opening characterised by the move: 1. f4. Named after 19th century English player Henry Bird, Bird's opening is a standard flank opening. White's strategic ideas involve control of the e5-square, offering good attacking chances at the expense of slightly weakening their own kingside. Black may ...

  3. Trapezoidal thread form - Wikipedia

    en.wikipedia.org/wiki/Trapezoidal_thread_form

    The Acme thread was developed in 1894 as a profile well suited to power screws that has various advantages over the square thread, [note 1] which had been the form of choice until then. It is easier to cut with either single-point threading or die than the square thread is (because the latter's shape requires tool bit or die tooth geometry that ...

  4. List of chess openings - Wikipedia

    en.wikipedia.org/wiki/List_of_chess_openings

    This is a list of chess openings, organised by the Encyclopaedia of Chess Openings (ECO) code classification system.The chess openings are categorised into five broad areas ("A" through "E"), with each of those broken up into one hundred subcategories ("00" through "99").

  5. Chess opening - Wikipedia

    en.wikipedia.org/wiki/Chess_opening

    Bird's Opening, 1.f4, addresses center control but not development and weakens the king position slightly. The Sokolsky Opening 1.b4 and the King's and Queen's fianchettos: Larsen's Opening 1.b3 and 1.g3 aid development a bit, but they only address center control peripherally and are slower than the more popular openings. The eleven remaining ...

  6. List of chess openings named after people - Wikipedia

    en.wikipedia.org/wiki/List_of_chess_openings...

    Benko's Opening1.g3 – named after Pal Benko [20] Bird Defense of the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nd4 – named after Henry Bird [21] Bird's Opening1.f4 – named after Henry Bird [7] Blackburne Shilling Gambit – 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4 – named after Joseph Henry Blackburne [22]

  7. Stonewall Attack - Wikipedia

    en.wikipedia.org/wiki/Stonewall_Attack

    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.

  8. Swiss Gambit - Wikipedia

    en.wikipedia.org/wiki/Swiss_Gambit

    The Swiss Gambit is a chess opening which is an offshoot of Bird's Opening (1.f4) ... The Wagner Gambit begins with the moves: 1.f4 f5 2.e4 fxe4 3.Nc3 Nf6 4.g4. [1]

  9. Kashmir nutcracker - Wikipedia

    en.wikipedia.org/wiki/Kashmir_nutcracker

    It is a distinctive corvid with heavily streaked and spotted plumage.They are usually 32–35 cm (13–14 in) in length. They have a wing length of 195–212 mm (7.7–8.3 in), with a weight of 155–173 g (5.5–6.1 oz) for females and 165–177 g (5.8–6.2 oz) for males.

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