Game No. 30, printed pages 39–40, in Wilhelm Steinitz, The Book of the Sixth American Chess Congress (1891). The printed playing date is March 29th.

1. 4…a6 QKt—B3 was now the only correct play.
2. 7.Nd3 Introduced by the editor in a game against Señor Golmayo, in a similar position. The difference that Black has previously lost a move by advancing P—QR3 is strongly in White's favor.
3. 10.d3 An error that at least compromises his advantage. This kind of game requires great patience, and he should have postponed developing his Q side. 10 B—K2, with the view of eventually retreating B—Q sq. in reply to the attack by QKt—Kt5, was the right play.
4. 10…Nb4 This excellent answer recovers the Pawn, with rather the better position.
5. 16.Nd5 A grave error that, we believe, ought to have cost him the game. P—KR3 was his right defence, and then the answer, P—R5 ch., could not harm him, as Black had no time for making preparations, and was bound to save his Knight.
6. 16…Kd8 A piece of good luck for White. In his better days Mr. Martinez would, no doubt, have seen that he could here win the game, as pointed out by Mr. Delmar, viz., by 16...P—B5 ch.; 17 K—B4, 17 P—KB3 (threatening P—Kt4 ch., followed by Kt—Q5 mate); 18 B—K3 (or 18 P—K5, 18 P—Kt4 ch.; 19 K—K4, 19 P—B4 ch.; 20 K moves, 20 Kt—Q5 mate), 18...Kt—K4, and wins.
7. 17.h4 He does not overlook it twice.
8. 18…Nd4 Useless. K—Q2, followed by QR—KKt sq., was by far stronger.
9. 19…c6 Also weak. The hole on the Q side is soon utilized by the opponent. K—Q2 was again the right move.
10. 23…g5 The sacrifice of a Pawn, though it embarrasses the opponent for some time, is hardly justifiable in this position. He could have prepared the same sort of attack by P—KB3.
11. 26…Ke8 Loss of time, as soon shown. K—B3 was superior.
12. 27…Nd4 Again time lost, for he has to beat a retreat almost immediately.
13. 30.Nc4 His Knight was well enough placed, and P—R4 at once was preferable.
14. 32.Bf2 Much stronger was, we believe, 32 P x Kt, whereupon, after 32...Kt x B; 33 P x BP, 33 P x P; 34 Kt—K5 ch., 34 K moves; White's attack by 35 P—Q4 would soon become irresistible.
15. 38…c5 If 38...P—R5, then still 39 P—Kt3.
16. 39.g3 With this excellent move White releases at last his long blocked-up pieces on the K side.
17. 41.Be3 A fine move that forces, at least, the gain of the adverse KKP, which is the key to Black's position.
18. 41…Rxg3 Desperate. He now must lose the exchange, but there was nothing good.
19. 49.Ke2 Winning plainly and surely. The exchange of Black's Rook is now obviously forced.