10.d3The idea being to defer the advance of this Pawn to the fourth square to a later period, when White is better developed and can therefore render this move more incisive. But the disadvantage is that Black obtains too much freedom.
10…Nc6It is not clear why Black should not Castle at once and try to bring his Rooks into play by P - K B 4. For the time being this Knight was well enough placed.
22.dxe5An elegant sacrifice, which is advantageous for White whether accepted or refused. If Black play 22) .... P x P, then follows 23) K R - Q R sq, R x R; 24) R x R, B - Q B sq; 25) Q - Q 6, or 24) .... R - Q sq; 25) R - B sq and White will maintain the possession of the important Q R file.
24.Nd5The point of the sacrifice. If the Bishop were not at Q B sq or Q 2, Black would repulse the attack by 24) .... Kt x Kt and 25) .... K - Kt 2.
26…Re8To guard against R x Kt.
28…Ng6He hopes for 29) R - K Kt 3, R - R 8 ch; 30) K - R 2, R - K 8; 31) Kt - B 5 ch, K - B sq and Black would escape.
30.Re6A tit-bit.
38.Bf5+Winning the Queen also after 38) .... K - Q 3; 39) Q - Kt 3 ch. This game was awarded first prize for brilliancy by the committee.
Emanuel Lasker, The International Chess Congress, St. Petersburg, 1909 (1910) · Public domain · source