Notes by Dr. Tarrasch.

1. 4…d6 The originator of the defence 3.... P to Q R 3; and 4.... P to Q 3 is Alapin.
2. 5…exd4 B to Q 2 is better, in order to keep the point at K 4 as long as possible. The exchange of the Pawn facilitates White's attack.
3. 9.Bxc6 Preparing for the next move.
4. 12.f3 White might better perhaps have waited with this and the following move till he was obliged; Q to Q 3, Q R to Q sq, and K R to K sq seem to be correct.
5. 14…Bg7 Black has played admirably and nearly equalised matters, and especially paralyses the dangerous opposing Bishop.
6. 15.Qd3 The Queen is well placed here; the Pawn at R 6 is attacked, and thus the Rook is kept at home.
7. 16…Bc6 This protecting of the Bishop is unnecessary; he might have played at once and continued with 16. Kt to Q 5, and if Kt x Kt, 17. B X B, Kt to B 5 (.?) or Kt to Kt 5 (?); 18. Q to B 3.
8. 20.Rbe1 White has still the better game, but too much has already been exchanged, and the game drifts gradually into a draw.
9. 21.Rxe8 Kt to K 2, B 4 and K 6 seems stronger.
10. 29…Nf7 White could lock up the Queen with Kt to B 3, but would be obliged to set it free again on the next move.