Notes by E. Lasker.

1. 10.Ba3 A novelty by the leader of the White forces. White intends to give up the Piece in order to prevent Black from Castling into safety.
2. 10…Be6 Black declines the acceptance of the sacrifice with doubtful judgment. If 10. P x B, the consequence might be—11. R to K sq, P to K B 4; 12. Kt to Q 2, K to B 2; 13. Kt x Kt, P x Kt; 14. R x P, Q to B 3. This appears to be the only possible move, as R to K sq would be answered by Q to R 5, ch, and B to B 4 by R to B 4. 15. Q to K 2, B to K 3 (?) (a, b); 16. Q R to K sq, K R to K sq; 17. P to Q 5, and wins. (a) 15. ... B to Q 2 (?); 16. Q x P, ch, K to Kt 3; 17. P to Q 5, Kt to K 4; 18. Q x B P, K R to K sq; 19. Q x Kt P, with three Pawns for the Piece. (b) 15. ... B to B 4 (!); 16. R to B 4, P to K R 4; 17. Q x B P, ch, K to Kt 3; 18. P to Q 5, Kt to K 4; 19. Q x P, K R to K sq; and although Black is two Pawns behind for the Piece, and may lose a third, his attack is excellent.
3. 14…Qf6 Black plays exceedingly well for position. It is with best judgment that he allows White the opportunity of doubling his Queen's 44 Pawn, and White is wise to abstain from it, as by doing so he would involve both his Knight and his Queen's Bishop's Pawn in difficulties.
4. 16.Rb3 The Rook ought to have left the open file, as R to Kt 4 would be answered by P to Q R 4; and the move actually made loses the exchange for a Pawn.
5. 25.Bd4 A poor place for the Bishop. It seems as though B to R 3 would give him better prospects of fixing his Pawns far ahead in the camp of his adversary.
6. 27.d6 A faulty combination, which by opening up all lines to the Rooks endangers White's game to a considerable extent. White probably expected to win a Piece in case the Pawn was captured, but overlooked the retort of Black's 29th.move regaining the Piece immediately.