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Train this openingVariations
Four Knights Game: Spanish Variation, Gunsberg Counterattack
Nc6 4. Bb5 Bb4 5. O-O O-O 6. Nd5 Nxd5 7. exd5 e4
Four Knights Game: Spanish Variation, Rubinstein Variation
Nc6 4. Bb5 Nd4 5. Nxe5 Qe7 6. f4
Four Knights Game: Spanish Variation, Rubinstein Variation, Henneberger Variation
Nc6 4. Bb5 Nd4 5. O-O
Four Knights Game: Spanish Variation, Symmetrical Variation, Tarrasch Variation
Nc6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Be6