PS+ Required? - Chess Ultra - PSNProfiles

Can anybody tell me if this game requires PlayStation Plus in order to unlock any of the online trophies (even the ones that can be boosted using multiple accounts) or can the platinum be achieved without it?

Chess Ultra Trophy Guide & Road Map

Watch Dogs : Legion PS4 and PS5 Trophy Guides and PSN Price History

Chess Ultra Trophy Guide •

dgaustin's PSN Profile •

Chess Ultra Trophy Guide and Roadmap - Chess Ultra

mffl777's PSN Profile •

BigChungusVenom's PSN Profile •

All PS Now Platinum Trophies List - PlayStation Universe

Chess Ultra: Academy Game Pack

Pure Chess Trophy Guide •

PlayStation Plus Extra/Premium Games List - PlayStation Network - PSNProfiles

PlayStation Plus Extra/Premium Games List - PlayStation Network - PSNProfiles