Tartakower, Saviely VS Lasker, Emanuel 1909.02.23

Annotations

1. 7…c6 Black is already sufficiently developed and prepared to take possession of the centre by P - Q 4, and support it by R - K 1. For this reason the Sicilian Opening for White, as introduced by Anderssen, appears to be inferior.
2. 15…Bf6 If 15) ..., R - B 1; 16) Kt - K 3, B - Q B 4; 17) Q - K 4, the Black Queen's side Pawns would remain without support.
3. 28…Bd5 With a view to securing the position of the Knight at Q 6, the exchange of White's King's Bishop appears opportune; the more so, as this exchange weakens at the same time the position of the White King, by creating a “hole” at K B 3.
4. 34…b5 In order to prevent Q - Q B 4.
5. 41…Qe4 An essential move, to prevent White from playing 42) Q - Q B 6. The latter move would now be met by 42) ..., Kt x B P, and White is lost, with whatsoever piece he retakes.
6. 42…g5 Decisive. If White capture the Pawn 43) P x P, then follows at once 43) ..., Kt - K 4 and in answer to any Bishop's move 44) ..., R - Q 8.

Emanuel Lasker, The International Chess Congress, St. Petersburg, 1909 (1910) · Public domain · source