Puzzle 519965: White to defend
Puzzle 519965: White to defend
Salo Landau - Efim Bogoljubov
Noordwijk (3), 1938 Salo Landau - Efim Bogoljubov
Noordwijk (3), 1938
Noordwijk (3), 1938 Salo Landau - Efim Bogoljubov
Noordwijk (3), 1938