R × Kt would lose easily

37. R × B P P - Q 6 !

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

I have passed over the game lightly because of its difficult nature, and because we are at present concerned more with the opening and the middle-game than we are with the endings, which will be treated separately.