• Blumenfeld counter-gambit (E10)

    d4 Nf6 c4 e6 Nf3 c5 d5 b5

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    Blumenfeld counter-gambit Dus-Chotimursky variation (E10) Bg5 Bg5 Blumenfeld counter-gambit Dus-Chotimursky variation (E10)
    Blumenfeld counter-gambit accepted (E10) de fe cb d5 de fe cb d5 Blumenfeld counter-gambit accepted (E10)