Karpova: This game is from a return match between the Czech Chess Friends and the Vienna Amateur Chess Club (former Chess Club Schlechter). The first match in Brno had been won by the czech players, but this time, the viennese players won 6.0-4.0 and this win was crucial.
Kmoch considered this game by Dr. Kondor the best of the match and these are his notes (condensed):
<4...d6> Good and safe. Avoiding complications by not holding on to the gambit pawn.
<5...Nxd4> ? Helping White's development.
<8.Be3> Suggesting 8.Bg5.
<9.h3> Unnecessary. Better 9.0-0-0 as 9...Ng4 runs into 10.Qxg7.
<9...a6> Prepares the pawn march, but castling was in order.
<11.Be2> Of course, not 11.Bb3 because of c7-c5-c4.
<11...Qc8> Castling was still in order.
<12.Nd5> White could have castled as the ♗ sacrifice on h3 would have been incorrect.
<13.Qxd5> ! Much better than taking with the pawn, which would ease the pressure on the centre and clog the position. 13.Qxg7 was bad because of Bf6.
<13...c5> ? The pawn d6 remains backward and weak.
<14.b3> Carefully played, as 14.Bf4 0-0 15.Bxd6 Be6 had led to complications and complications are only good for the positionally worse side.
<17.Bf3> !
<18.Bg5> !
<24.Bd5> ! Threatens Qxc5! and, in correct evaluation of the resulting position, doesn't fear the simplification.
<26...c4> Weakening the Black position even more, better was 26...Qd8 followed by Qe7 or Qf6.
<27.Qe3> Winning a tempo, planning to put the ♕ on d5.
<29.axb3> To restrict the Black ♕.
<31.Qd5> ! Achieving a winning position.
<31...g6> The only (and sealed) move. White threatened on the one hand Qa8+ and on the other Rf3 followed by Re3.
<36.g3> To avoid a possible ♕ trade.
<37.Qb6> !
<37...Re2> Loss of a pawn cannot be avoided any longer.
<44...Qe5> If 44...Qe1+ 45.Kh2! and now either 45...Qxb4 or 45...Rxb4, White gets a mating attack with 46.Ra8+ Kf7 47.Qd5+.
<53...e4> The pawn is lost immediately, but the situation was hopeless anyway.
<58...Kb7> Black could have resigned. As one of the match conditions was that games, which weren't finished after 7 hours, had to be estimated, a jury consisting of two Brno and two viennese players, plus the arbiter, judged the game to be won for White in unison.
Source: Pages 340-342 of the December 1923 'Neue Wiener Schach-Zeitung'