In_Association_with_Amazon

ECO CODES

E23 Nimzo-Indian: Spielmann, Staahlberg variation
1. d2d4 g8f6 2. c2c4 e7e6 3. b1c3 f8b4 4. d1b3 c7c5 5. d4c5 b8c6
6. g1f3 f6e4 7. c1d2 e4c5 8. b3c2 f7f5 9. g2g3
















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