Puzzle 409859:
Puzzle 409859:
GM S. Ganguly (2660) - GM P. Tregubov (2582)
Paul Keres Memorial 2015 Tallinn EST, 2016.01.10 Ganguly - Tregubov, Tallinn 2016
Paul Keres Memorial 2015 Tallinn EST, 2016.01.10 Ganguly - Tregubov, Tallinn 2016