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?

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

JeSuisVoldy's PSN Profile •

CaptainSellers' PSN Profile •

dread-control's PSN Profile •

Chess Ultra Trophies •

Clavietka's PSN Profile •

Chess Ultra: Academy Game Pack

Pure Chess Trophies •

Other] My ultra rare Platinums according to psnprofiles. What are some of yours? : r/Trophies

Chess Ultra Trophy Guide and Roadmap - Chess Ultra

Chess Ultra PS4 Pro Gameplay [ Single Game ]

Chess Ultra Trophies •