In_Association_with_Amazon

ECO CODES

E31 Nimzo-Indian: Leningrad, main line
1. d2d4 g8f6 2. c2c4 e7e6 3. b1c3 f8b4 4. c1g5 h7h6 5. g5h4 c7c5
6. d4d5 d7d6
















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