The post you're likely looking for refers to a popular chess opening course by GM Michael Roiz released through Modern Chess in 2019 .
Covers all other variations White might play against the Spanish (Ruy Lopez) that aren't the Breyer.
Focuses specifically on the main line Breyer structures and tactical subtleties.
The "Bre..." in your query almost certainly refers to the (1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Nb8), a deeply strategic and solid line for Black in the Ruy Lopez. Key Details of the Repertoire