Played against my better judgment. The right move of course was B × B. Dr. Lasker gives the following variation: 13...B × B; 14 R × B, P - B 4; 15 Q R - Q 1, B - Kt 2; 16 R - B 2, Q R - Q 1; 17 R × R, R × R; 18 R - Q 2, R × R; 19 Kt × R, and he claims that White has the best of it. But, as Niemzovitch pointed out immediately after the game, 16...Q R - Q 1 given in Dr. Lasker's variation, is not the best. If 16...Q R - B 1 ! then White will have great difficulty in drawing the game,
since there is no good way to stop Black from playing Kt - B 3, followed by Kt - K 4, threatening Kt - B 5. And should White attempt to meet this manœuvre by withdrawing the Kt at Kt 3; then the Black Knight can go to Q 5, and the White Pawn at K 4 will be the object of the attack. Taking Dr. Lasker's variation, however, whatever advantage there might be disappears at once if Black plays 19...Kt - B 3, threatening Kt - Kt 5 and also Kt - Q 5, neither of which can be stopped. If White answers 20 Kt - Q 5, Kt - Q 5 for Black will at least draw. In fact, after 19...Kt - B 3 Black threatens so many things that it is difficult to see how White can prevent the loss of one or more Pawns.
14. B × B
P × B
15. Kt - Q 4
It is a curious but true fact that I did not see this move when I played 13...B - Kt 2, otherwise I would have played the right move 13...B × B.
15. ........
Q R - Q 1
The game is yet far from lost, as against the entry of the Knight, Black can later on play P - B 4, followed by P - Q 4.
