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?

Review: Chess Ultra (Sony PlayStation 4) – Digitally Downloaded

Chess Ultra: Academy Game Pack

Chess Ultra Trophy Guide •

Download and play Chess Ultra: Pantheon Game Pack at the Epic Games Store.

Chess Ultra: Pantheon Game Pack

Chess Trophies •

Tennis On-Court Trophy List out on PSN Profiles : r/PSVR

Tennis On-Court Trophy List out on PSN Profiles : r/PSVR

Discussion] 0.1% Ultra Rare Rarity Suggestions? : r/Trophies

Chess Ultra Trophies •