Baden-Baden, 1925.

1. 8…Nbd7 Black has a solid but cramped game; such a game can as a rule only be slowly opened up.
2. 10…e5 Slower, therefore more true to type, would be Kt-R4.
3. 11…Bxf3 Not 11. KtxP because of 11. ... BxKt; 12. BxKt, R-Q1; with pressure in the Q file.
4. 14…Rb8 White with his Q file and a Knight outpost at Q5 will be able to force P-QB3, that is already clear. True the Black QP will not be difficult to defend, for it stands on a square of the same colour as his Bishop, but what is going to happen in the KKt file? This we shall soon see.
5. 17…a5 No outpost, yet strong. The student should learn by careful practice how to establish Knights so that they cannot be driven away.
6. 18…g6 This would in any event be forced by Q-QB2.
7. 21…Rb7 The situation in the KKt file may now be regarded as so far cleared up, that it is evident that the threat consists in a sacrifice at Kt6 (i.e., the ‘revolutionary’ attack). The slow undermining operations by P-KR4-R5 would be, on the other hand, difficult to carry through.
8. 23.b3 He might have gone in for the combination 23. Kt-R5, QxQKtP; 24. RxKtP, PxR; 25. QxP, but the attack would hardly have succeeded.
9. 24.Ne2 In order to bring the Knight to Q4. White’s dilemma consists in having two files, the Q and KKt; he cannot quite make up his mind which to use, and on this indecision his game goes to pieces.
10. 27…h5 Not merely to make B-R3 possible, but also because the KRP has a great role to play.
11. 29…d5 Gets rid of the weakness at Q3 and soon commands the Q file.
12. 32…Bg7 The decision to abandon the diagonal KR3 to KB1, a difficult one to have to make, is made comparatively easy to one who knows that there will be impediments (here very likely a Knight at Q5) to be bombarded. I did not like R-Q7 at once (instead of B-Kt2) because of the reply 33. Kt-Q4, BxP; 34. R-B3.
13. 33.Qc1 I had expected here (at last!) the sacrifice at KKt6 and had in anticipation prepared a real problem in reply; namely 33. BxKtP, P-KR5!; 34. R-Kt4, PxB; 35. RxP, Q-B4; 36. RxB, Q-K5 ch; 37. Q-Kt2 (forced), R-Q8 ch; 38. Kt-Kt1, and now the point 38. ... P-R6; 39. QxQ, KtxQ; threatening mate at B7.
14. 33…Qd6 The exploitation of the Q file which now follows is all according to book (I mean my book), but is here embellished by a pretty feature.
15. 36.Ng1 I was glad to be rid of the Knight and played
16. 36…Nc3 This Knight manœuvre makes possible the invasion of the enemy’s base (here his 1st and 2nd ranks).
17. 37.a4 If P-QR3 then Kt-R7 winning the QRP.
18. 38…Nb4 Here I had the unpleasant feeling that I had let the Bishop escape, had allowed him elbow-room.
19. 39…Rd1 My first thought was: What a pity! now the Queen will also find her way into the open; but then I saw the mating spectre loom up, the same one which I had known well ever since the 33rd move.
20. 43…Rc1 And here I rejoiced over the Queen’s involuntary return home.
21. 44…Rb1 Resigns, for the turning move R-Kt7 will be deadly in effect. The impression we get from this game is that the system supports combinative play most effectively.