45.  R-Q5ch        K-B3
46.  RxP           Resigns

Game No. 16

     White:  Yates.  Black:  Gunsberg.

Ruy Lopez.

1.  P-K4 P-K4
2.  Kt-KB3 Kt-QB3
3.  B-Kt5 P-QR3
4.  B-R4 Kt-B3
5.  Castles KtxP
6.  P-Q4 P-QKt4
7.  B-Kt3 P-Q4
8.  PxP B-K3
9.  P-QB3 B-K2
10.  B-K3

in order to exchange the Black Knight if played to B4.

10. ...  Castles
11.  QKt-Q2

If Q-Q3, then Kt-R4; 12.  QKt-Q2, P-QB4.

11. ...  KtxKt

This furthers White’s development, and should not be played unless there is no other move available.  To be considered are P-B4 and B-KKt5.  An argument against P-B4 is that White can deprive Black’s weak centre pawn of one protecting piece (12.  PxP e.p., KtxP (B3); 13.  Kt-Kt5), and experience has shown that White obtains the superior game.

12.  QxKt                Kt-R4
13.  B-B2                Kt-B5

A very dangerous manoeuvre, as White can evade the exchange of his Bishop and the Black Kt does not get back in time for the defence of the K side, where White’s attack becomes virulent.  He should have played P-QB4 followed by Kt-B3.

14.  Q-Q3 P-Kt3 15.  B-R6 KtxKtP 16.  Q-K2 R-K1 17.  Kt-Q4

Black had probably anticipated that White would be content with regaining his pawn by BxP, but, with fine positional insight, he retains his Bishop for the coming onslaught and speedily concentrates his forces on the K side; whilst Black, who has won a pawn at the expense of several moves, cannot mobilise an equivalent number of pieces in time for the defence.

17. ...                  Kt-B5
18.  P-B4                B-Q2

White was threatening 19.  Kt-B6, 20.  KtxB, 21.  B-Kt5, 22.  B-B6; 18. ...  Q-Q2 is not sufficient, as 19.  P-B5 would follow.  Neither can 18. ...  B-QB4 be played because of 19.  B-Kt5, Q-B1; 20.  B-B6.  Preferable to the text move seems B-KB1 (19.  B-Kt5, Q-B1; 20.  B-B6, B-Kt2), as then the Black pieces have more freedom of action.

          19.  QR-K1 P-QB4
          20.  P-K6

A brilliant sacrifice to which no satisfactory reply can be found.  For instance, 20. ...  PxKt; 21.  Q-Kt4, Kt-K6, 22.  RxKt, PxR; 23.  P-B5, BxP; 24.  PxB, PxP, 25.  BxP, etc.; or 24. ...  R-KB1; 25.  PxPch, RxP; 26.  Q-K6, Q-K1; 27.  BxP, etc.; or 23. ...  P-Kt4; 24.  PxPch, KxP; 25.  Q-R5ch, K-Kt1; 26.  P-B6, BxP; 27.  BxP, etc.; or 21. ...  B-B4; 22.  PxPch, KxP; 23.  BxPch, PxB; 24.  P-B5, etc.  There are many variations, all leading to a speedy end.