ECO B45 · Sicilian Defense
Sicilian Defense: Four Knights Variation, Exchange Variation
The position after 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Nxc6.
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Nxc6
Sicilian Defense: Four Knights Variation, Exchange Variation is filed under ECO B45, a variation of Sicilian Defense: Four Knights Variation. It is the position after 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Nxc6 — 11 half-moves in, with Black to move. Named theory ends here; beyond this the position is yours to work out.