The result was delete. Michig (talk) 06:26, 21 September 2013 (UTC)[reply]
Appears to be a WP:HOAX. The creator listed two RS references (Eales, p. 185-186 and Sunnucks, p.310), but Hopkins is not mentioned on those pages -- in fact, the name is not mentioned anywhere in those books. Or any other chess encyclopedia that I checked. Online and WorldCat searches found no evidence of the existence of the other 4 reference titles nor their authors. They appear to be fake. The creator's history of changes to names and dates in the article, and odd entries like these quotes suggests the article is a joke. (Note: the companion Ruy Lopez, Hopkins Gambit article also lists references which are unfounded -- but there may be an actual footnote about it at C77 in the ECO. So I am not yet listing that article for deletion as a hoax until that can be checked, although, at best, it's probably non-notable.) — CactusWriter (talk) 01:40, 14 September 2013 (UTC)[reply]
Update: Related article listed at Wikipedia:Articles for deletion/Ruy Lopez, Hopkins Gambit. — CactusWriter (talk) 00:12, 16 September 2013 (UTC)[reply]
IMO the author-editor should be banned from WP, or at a minimum indefinitely blocked. (Can someone please explain why that wouldn't be warranted and appropriate? I know that isn't the venue here, but hey! Thanks.) Ihardlythinkso (talk) 07:26, 14 September 2013 (UTC)[reply]
ECO Vol C (3rd ed., 1997) dropped that line and 5.c4 doesn't show. Couldn't check 1st ed. ECO Vol C (I think I discarded that book since 2nd ed. dwarfed it). I checked some other books and couldn't find 5.c4 in any, including: The Ruy Lopez, Leonard Barden (1963, 1975 Pergamon reprint); MCO-12; BCO (1st ed., 1982); Oxford Companion (1st ed., 1987); Theory and Practice, Horowitz; The Complete Book of Gambits, Keene (1992). Ok, Ihardlythinkso (talk) 23:04, 14 September 2013 (UTC)[reply]5.c4?! Bc5 6.Nc3 0-0 7.0-0 d6 8.Bxc6 bxc6 9.d4 exd4 10.Nxd4 Bd7 =/+ Radkevič–Sumilin, SSSR 1937