Puzzle 273366:
Puzzle 273366:
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