ECO C69 · Ruy Lopez
Ruy Lopez: Exchange Variation, Gligoric Variation
The position after 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O f6.
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O f6
Ruy Lopez: Exchange Variation, Gligoric Variation is filed under ECO C69, a variation of Ruy Lopez: Exchange Variation. It is the position after 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O f6 — 10 half-moves in, with White to move. Named theory ends here; beyond this the position is yours to work out.