I have nicked this from Eli Wong, who got it via another fiendishly diligent fan, so this trace of Old Beardo from the annals of Chess history is gonna circulate like the endless adventures of the dialectic (sacrifice the wonky the knight or the promoted pawn, I dunno - reckon its a job for Harpo):
Karl Marx vs Meyer
Casual Game 1867 · King's Gambit: Accepted. Double Muzio Gambit Paulsen Defense (C37) · 1-0
There is some entertaining discussion on the board where this appears, I excerpt some here, mostly from 2005-2006:
Ziggy2016: Marx played like the romantic he was.
Ron: It seems that Karl Marx's chess play was historically conditioned.
euripides: Marx's play shows good knowledge of opening theory. However, Games Like K Marx vs Meyer, 1867 shows that he might have got this theory from games in the 1830s or from recent games in the 1860s. So we can't be sure that 'Capital' took so long because Marx was studying opening theory, though it is quite possible.
euripides: I note this game's authenticity has been questioned. According to Francis Wheen's biography, Marx attended a part given by the chessplayer Gustav Neumann in Berlin in 1867 and this game is meant to have been played there. He acknowledges the help of the Karl Marx Museum and their attached study centre for helping him find it.