Here are some chess puzzles from the games of Borislav Kostic. White to move and win except where noted.
Solutions are between the brackets under each puzzle. Drag your mouse from one bracket to the other.
a) Kostic vs Oscar Chajes, New York, 1918 [ c5 w/d6 ]
b) Kostic vs Endre Steiner, Budapest, 1921 [ Qd2 w/Rxf6 ]
c) Kostic vs Daniel Noteboom, Prague, 1931 [ Bxf7 w/Nd8+ ]
d) Kostic vs Leon Kremer, Munich, 1936 Black's king has moved. [ Ra8 ]
e) White Mates in 2. Kostic vs Paul Keres, Stockholm, 1937 [ Bh6+ ]
Kostic Puzzles, Part II. Black to move and win except where noted.
a) White Mates in 6. Kostic vs Savielly Tartakower, Bled, 1950 [ Nd6 if cxd6 Rb1+ Kc8 Qxa7 ]
b) Oscar Chajes vs Kostic, Carlsbad, 1911 [ ...Rf1+ ]
c) Albert Hodges vs Kostic, New York, 1916 [ ...g5 ]
d) Edward Tennenwurzel vs Kostic, New York, 1916 [ ...Bxh3 Rxh3 Nxg4+ Ke1 Nxe3 Nxe3 Bxf4 ]
e) Henri Weenink vs Kostic, London, 1927 [ ...Qd2 w/...Bh3 if Qf7 Qxe1+ & Qd2+ ]
f) Jakob Seitz vs Kostic, Nice, 1930 [ ...c6 w/...d5 ]