Puzzle 217634:
Puzzle 217634:
GM Anton Korobov (2668) - GM Alexandr Predke (2676)
World Blitz 2019 Moscow RUS, 2019.12.30 Korobov - Predke, Moscow 2019
World Blitz 2019 Moscow RUS, 2019.12.30 Korobov - Predke, Moscow 2019