Notes by E. Schiffers.

1. 5…Bb4 The ‘Handbuch’ considers that Black’s best move here is B to K 2; White continues 6. Castles, P to Q Kt 4; 7. B to Q Kt 3; P to Q 3; 8. P to Q R 3 or 8. P to Q R 4.
2. 6…Bc5 After B to K 2, would follow 7. P to Q 3, P to K R 3, &c., even game. It would not be good to play Kt to Kt 5; 7. P x Kt, Kt to K 2; 8. P to Q B 3, B to R 4 (?), Kt x P.
3. 7.d3 The ‘Handbuch’ gives the continuation 7. P to B 3, Kt x P; 8. P to Q 4, P x P; 9. P x P, B to Kt 5, ch; 10. K to B sq, in White’s favour.
4. 8…Bxe3 Also good would have been Kt x B.
5. 10…Be6 B to Kt 5 is better.
6. 13.Nxc6 After 13. Kt x B, P x B (Q x P, ch; 14. K to R sq, P x B; 15. Q to R 5, ch); 14. B x Kt, ch, P x Kt; 15. Q to B 3. White’s game is preferable.
7. 15.Nxe5 And other moves still do not give White the superiority, e.g. 15. Kt to Kt 4, B x B; 16. Kt to Q 5, Q to B 4, &c.
8. 21.Rae1 21. R to Q B sq, Q R to K B sq; followed by K R to Q 7 and the other R on K B 7 would have been worse, as White would then get into difficulties; whereas now the draw is secure.