The Game of Doublets--Reboot f

bluest

Bluesy

blues

Blaes

Sorry @Richmatik, Blaes does not come up in the Official Scrabble dictionary. It is a word but it must be in the Scrabble Dictionary to be valid. It is not

Play continues with

blues

Ah, it’s in the tournament dictionary - but we must be using the non-tournament one. (The Collins dictionary has it)

BLURS

Burs

Burst

This is the dictionary we use. https://scrabble.hasbro.com/en-us/tools#dictionary

Bursts

Burets

Buret

Burnt

burns

Barns

Barn

ban

Bun

Ben

Bent

rent