Puzzle 273366: White to defend
Puzzle 273366: White to defend
Lev Polugaevsky - Yacov Estrin
URS-ch sf Vilnius (13), 1960 Lev Polugaevsky - Yacov Estrin
URS-ch sf Vilnius (13), 1960
URS-ch sf Vilnius (13), 1960 Lev Polugaevsky - Yacov Estrin
URS-ch sf Vilnius (13), 1960