C: 2006 Volume B part 1 [ECO codes: B00–B49]: 2020 Volume B part 2 [ECO codes: B50-B99]: 2021 Chess annotation symbols – ECO uses symbols instead of text...

6.Bc4, the Sozin Variation (ECO code B57). It brings the bishop to an aggressive square. Black usually plays 6...e6 (ECO B88 transposed) to limit the...

(ECO code A46) or the Tartakower Variation in the Queen's Pawn Game (ECO code D03): 2... d5 3. Bg5 or the Torre Attack in the East Indian Defence (ECO...

instead to develop to d3. The opening code for the Leningrad Dutch in the Dutch Defense is A87 to A89 in the ECO (Encyclopaedia of Chess Openings) classification...

implemented in the same way as Eco-Schools. The only real difference is that students devise an Eco Charter instead of an Eco Code. This Charter is a document...

expectancy of an individual at birth (age zero) E00, Cretinism ICD-10 code E00, ECO code for certain variations of the Queen's Pawn Game chess opening Enemy Zero...

opening begins with the moves: 1. e4 a6 The St. George Defence is given ECO code B00 as a King's Pawn Opening. This article uses algebraic notation to describe...

5.h4 4.Be3 (ECO B07) 150 or "Caveman" Attack (4.Be3 c6 5.Qd2) 4.Bg5 (ECO B07) Byrne Variation 4.g3 (ECO B07) Sveshnikov System 4.Nf3 (ECO B08) Classical...

2.Ne2, the Bohemian Attack. The Encyclopaedia of Chess Openings has ten codes for the Caro–Kann Defence, B10 through B19: B10 – Miscellaneous 2nd moves...

considered the drawish Four Knights Game after the usual 3...Nf6. The relevant ECO code is C46. This article uses algebraic notation to describe chess moves. After...