Sicilian Defense: Four Knights Variation, Exchange Variation

1.
1. e4
2. c5
2.
3. Nf3
4. e6
3.
5. d4
6. cxd4
4.
7. Nxd4
8. Nf6
5.
9. Nc3
10. Nc6
6.
11. Nxc6

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The Sicilian Defense: Four Knights Variation, Exchange Variation is a chess opening classified under ECO code B40 (Semi-Open games). It is a variation of the Sicilian Defense family. Step through the moves on the board above, then play the line yourself or review it with the built-in engine.