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Unfortunately it doesn't fall into the "reliable source" category. Batgirl is great, but she doesn't give her sources. http://www.chess.com/blog/batgirl/the-childhood-of-russian-chess-pt-iv MaxBrowne ( talk) 10:04, 12 March 2015 (UTC) reply

The brother does have a page, but its in Russian. Here is the link to the wikidata source: https://www.wikidata.org/wiki/Q4477389 Over on the right side of the page, there's a RU wikipedia link for the brother. — Preceding unsigned comment added by Ekbreckenridge ( talk • contribs) 07:48, 12 June 2023 (UTC) reply