Puzzle 299261:
Puzzle 299261:
Paul Keres - Boris Spassky
10th Soviet TCh qual. group 3 Moscow URS (1), 1967 Paul Keres - Boris Spassky
10th Soviet TCh qual. group 3 Moscow URS (1), 1967
10th Soviet TCh qual. group 3 Moscow URS (1), 1967 Paul Keres - Boris Spassky
10th Soviet TCh qual. group 3 Moscow URS (1), 1967