B29Black1 book lines continue
Nimzowitsch Variation, Main Line
Sicilian Defense1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 e6 5. Nxd5 exd5 6. d4 Nc6
Also known as Sicilian: Nimzowitsch, Rubinstein Countergambit, Sicilian Defense, Nimzowitsch Variation, Sicilian: Nimzovich-Rubinstein; Rubinstein counter-gambit.