alphanumerical identifier for an opening in the Encyclopaedia of Chess Openings English
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British English
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    External identifier

    Statements

    Q27698571 (Deleted Item)
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    Q19847637 (Deleted Item)
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    Q108335666 (Deleted Item)
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    Q645666 (Deleted Item)
    ECO code English
    A01
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    Q678245 (Deleted Item)
    ECO code English
    B07
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    Ruy Lopez English
    ECO code English
    C77
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    Q21873974 (Deleted Item)
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    Q19474404 (Deleted Item)
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    Q21502410 (Deleted Item)
    Q21502408 (Deleted Item)
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    Q21503250 (Deleted Item)
    Q103632 (Deleted Item)
    relation English
    Q21503252 (Deleted Item)
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    Q52004125 (Deleted Item)
    Q29934200 (Deleted Item)
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    Q53869507 (Deleted Item)
    Q54828448 (Deleted Item)
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    Q21503247 (Deleted Item)
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    https://chessopenings.com/eco/$1/
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    [A-E]\d{2}(–[A-E]\d{2})?
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