ECO A83
ECO A00–A99 — Flank openings: 1.c4, 1.Nf3, 1.f4 and other first moves, plus early Indian and Benoni systems.
4 named opening lines are classified under ECO code A83.
- Dutch Defense: Staunton Gambit, Alekhine Variation — 1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5 g6 5.h4
- Dutch Defense: Staunton Gambit, Chigorin Variation — 1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5 c6
- Dutch Defense: Staunton Gambit, Lasker Variation — 1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5 g6 5.f3
- Dutch Defense: Staunton Gambit, Nimzowitsch Variation — 1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5 b6