13. B - R 6 Kt - B 4 14. R - Q 2 R - Kt 1 15. Kt - Q 1 R - Kt 5
To force White to play P - Q B 4, and thus create a hole at Q 5 for his Knight.[7] Such grand tactics show the hand of a master.
16. P - Q B 4 Kt - K 3 17. B × R Q × B 18. Kt - K 3
18. ........ Kt - Q 5 19. Q - Q 1 P - Q B 4
In order to prevent R × Kt giving back the exchange, but winning a Pawn and relieving the position.
In order to play B - Kt 2 without blocking his Rook.
{ 91} Black's manoeuvring for positional advantage is admirable throughout this game, and if he loses it is due entirely to the fact that the sacrifice of the exchange, without even a Pawn for it, could not succeed against sound defensive play.
The position begins to look really dangerous for White. In reality Black's attack is reaching its maximum force. Very soon it will reach the apex, and then { 92} White, who is well prepared, will begin his counter action, and through his superiority in material obtain an undoubted advantage.
23. Kt - B 1 P - B 5 24. Kt × Kt B P × Kt 25. Q - R 5 B - Kt 2 26. R - K 1 P - B 4
He could not play R - K 1 because of R × Q P. Besides, he wants to be ready to play P - K 5. At present White cannot with safety play R × K P, but he will soon prepare the way for it. Then, by giving up a Rook for a Bishop and a Pawn, he will completely upset Black's attack and come out a Pawn ahead. It is on this basis that White's whole defensive manoeuvre is founded.
27. P - B 3 R - K 1 28. R (Q 2) - K 2 R - K 3
Now the Black Rook enters into the game, but White is prepared. It is now time to give back the exchange. { 93}
29. R × P B × R 30. R × B R - K R 3 31. Q - K 8 Q × Q 32. R × Q ch K - B 2 33. R - K 5 R - Q B 3 34. Kt - Q 2
R - B 5 ch might have been better. The text move did not prove as strong as anticipated.
34. ........ K - B 3 35. R - Q 5 R - K 3 36. Kt - K 4 ch K - K 2
Very fine. White cannot play R B 7 ch because of K - Q 1; R × B, R × Kt winning.
38. K - B 2 B × Kt 39. P × B R × P 40. R - Q 5 R - K 6
The ending is very difficult to win. At this point White had to make the last move before the game was adjourned.
41. P - Q Kt 4 ! R - K 5 42. R × P R × P 43. R - K R 3 R × P 44. R × P ch K - B 3 45. R × P K - B 4 46. K - B 3 R - Kt 7 47. R - R 5 ch K - B 3 48. R - R 4 K - Kt 4 49. R × P R × R P 50. P - R 4 ch K - R 4 51. R - B 5 ch K - R 3 52. P - Kt 4 Resigns