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ECO A12

ECO A00–A99 — Flank openings: 1.c4, 1.Nf3, 1.f4 and other first moves, plus early Indian and Benoni systems.

8 named opening lines are classified under ECO code A12.

Réti Opening: Anglo-Slav Variation — 1.c4 Nf6 2.g3 c6 3.Nf3 d5 4.b3
Réti Opening: Anglo-Slav Variation, Bled Variation — 1.Nf3 d5 2.b3 Nf6 3.Bb2 g6 4.c4 c6
Réti Opening: Anglo-Slav Variation, Bogoljubow Variation — 1.Nf3 d5 2.c4 c6 3.b3
Réti Opening: Anglo-Slav Variation, Capablanca Variation — 1.c4 Nf6 2.Nf3 c6 3.b3 d5 4.Bb2 Bg4
Réti Opening: Anglo-Slav Variation, London Defensive System — 1.c4 Nf6 2.g3 c6 3.Nf3 d5 4.b3 Bf5
Réti Opening: Anglo-Slav Variation, New York System — 1.Nf3 Nf6 2.c4 c6 3.b3 d5 4.Bb2 Bf5
Réti Opening: Anglo-Slav Variation, Torre System — 1.c4 Nf6 2.g3 c6 3.Nf3 d5 4.b3 Bg4
Réti Opening: Anglo-Slav Variation, with dxc4 — 1.c4 Nf6 2.g3 c6 3.Nf3 d5 4.b3 dxc4