A.A. Troitzky
"Deutsche Schachzeitung" 1907
Win

White: Kg2, Rg8, Bd6; pawns c5, e2, f3
Black: Kh6, Qh4; pawns c6, f4, h5

Black's King and Queen are in a cramped position. White's initial moves increase the spatial
advantage even more.

1 Bf8+ Kh7 2 Rg7+ Kh8 3 Be7!/I Qe1 4 Bf6/ii Qxe2+!/iii 5 Kh1!/iv Qe6!/v 6 Bd4/vi Qc4! 7 Ba1
h4 8 Bf6 Qe6 9 Bd4 Qc4 10 Ba1 h3 11 Bf6 Qe6 12 Bd4 Qc4 13 Ba1 h2 14 Bf6 Qe6 15 Bd4 Qc4
16 Ba1/vii

I/ Intending to bring the Bishop to the long a1-h8 diagonal, threatening discovered check.
ii/ Threatening Kh2 and Rg1+.
iii/ An attempt at active play. Not so good is 4...Qc1 5 Kh2! Qc2 6 Kh1! Qc4 7 e4! and Black, in
zugzwang, must lose the Queen.
iv/ The only retreat where the White King need not fear checks. If 5 Kg1, 5...Qe1+ obviously
follows, while if 5 Kh3 - 5...Qe6+!
v/ Winning a tempo. If Black plays 5...Qc4 at once then 6 Ba1! Which drives Black's Queen out
of its hiding place. It is curious that with Black's Queen on c4, it is a mistake on White's part to
play 6 Kh2 (instead of 6 Ba1) as 6...Qa6 7 Bd4 Qc4 and now White cannot play 8 Ba1? because
of 8...Qa2+. On the other hand, Black cannot play 5...Qxf3+ (instead of 5...Qe6) because of the
reply 6 Kh2! and Black's Queen has nowhere to hide.
vi/ With this move White starts a Bishop manoeuvre, the three-fold repetition of which puts
Black into zugzwang.
vii/ And Black's Queen, because of zugzwang, is forced to move into danger.