• Catalan closed (E01)

    d4 Nf6 c4 e6 g3 d5 Bg2

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    Catalan closed, 5.Nf3 (E06) Be7 Nf3 Be7 Nf3 Catalan closed, 5.Nf3 (E06)
    Catalan open, 5.Nf3 (E04) dc Nf3 dc Nf3 Catalan open, 5.Nf3 (E04)
    Catalan open, 5.Qa4 (E02) dc Qa4 dc Qa4 Catalan open, 5.Qa4 (E02)