Karpova: Annotations (condensed):
5...Ng8 <Georg Marco: Highly unlikely that this is better than the common Nfd7, as it severly hinders the development of the King's side.>
6.Be3 <Georg Marco: Of course, not Bxe7 which would greatly help Black to develop, while now the ♘g8 is restricted to inactivity for a long time to come.>
7.Qg4 <More recommendable is 7.dxc5 Nd7 8.Bh5! Qc7 9.Qg4 as White has excellent play after 9...Qxe5 10.Nf3 and 11.0-0-0.>
8...Nc6 <With Nd7, Black could have regained the pawn. Now, White's advantage persists.>
10.Qa4 <!>
11.Nb4 <Appears ineffective. White wins a tempo for development.>
12.Kd2 <!>
15.Bb5 <White wants to relieve the point e5.>
19.f4 <! As of move 10, White has been playing with a good eye for the position and admirable force. Whether a pawn or piece is on e5 doesn't matter as long as Black's game remains paralyzed.>
20.Ne2 <!>
23.Bxd4 <Kotrc assessed the position correctly when not shying away from isolation of the ♙e5, nor ♗s of opposite colours.>
26.Ra3 <! A fine pre-plan to the following combination. The ♖ shall leave the a-file first.>
27...Rf7 <Better was Kf7, but the following elegant and sweeping manoeuvre wasn't obvious.>
28.b5 <!>
30.c6 <!>
31.b6 <!>
32...Bc8 <As Ba7 is threatened, Black is forced to make this sad move. On Kd8 would have followed 33.Bb6+ first, of course.>
34...Ke8 <Another eduational error, the ♙g7 is only seems to be protected.>
36.Rxb7 <und Weiß gewann. (and White won - this could mean that further moves followed)>
Source: Pages 199-200 of the September-October 1915 'Wiener Schachzeitung'