Puzzle 643986:
Puzzle 643986:
S. Matysiak (1765) - GM A. Zontakh (2566)
European Rapid 2011 Warsaw POL (1), 2011.12.17 Matysiak - Zontakh, Warsaw 2011
European Rapid 2011 Warsaw POL (1), 2011.12.17 Matysiak - Zontakh, Warsaw 2011