Puzzle 521776: White to defend
Puzzle 521776: White to defend
Tigran V Petrosian - Vladimir Antoshin
24th URS-ch Moscow URS (18), 1957 Tigran V Petrosian - Vladimir Antoshin
24th URS-ch Moscow URS (18), 1957
24th URS-ch Moscow URS (18), 1957 Tigran V Petrosian - Vladimir Antoshin
24th URS-ch Moscow URS (18), 1957