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A47 Queen's Indian defence( 1.d4 Ng8f6 2.Ng1f3 b6) A47 Queen's Indian: Marienbad system( 1.d4 Ng8f6 2.Ng1f3 b6 3.g3 Bc8b7 4.Bf1g2 c5) A47 Queen's Indian: Marienbad system, Berg variation( 1.d4 Ng8f6 2.Ng1f3 b6 3.g3 Bc8b7 4.Bf1g2 c5 5.c4 cxd4 6.Qd1xd4) Thanks to Franz Hemmer franz@hemsoft.ping.dk |