Zagonetka 341603:
Zagonetka 341603:
Bas De Boer (2143) - IM L. Yankelevich (2389)
Serbia Chess Open 2021 Belgrade SRB, 2021.07.02 De Boer - Yankelevich, Belgrade 2021
Serbia Chess Open 2021 Belgrade SRB, 2021.07.02 De Boer - Yankelevich, Belgrade 2021