Puzzle 760396:
Puzzle 760396:
GM P. Ponkratov (2573) - IM S. Chekhov (2458)
20th Voronezh Master Open Voronezh RUS, 2016.06.16 Ponkratov - Chekhov, Voronezh 2016
20th Voronezh Master Open Voronezh RUS, 2016.06.16 Ponkratov - Chekhov, Voronezh 2016