Puzzle 257419:
Puzzle 257419:
GM Mat Bartel (2649) - IM M. Tabatabaei (2481)
49th Biel Master Open Biel SUI, 2016.08.02 Bartel - Tabatabaei, Biel 2016
49th Biel Master Open Biel SUI, 2016.08.02 Bartel - Tabatabaei, Biel 2016