Algebraic entropy, symmetries and linearization of quad equations consistent on the cube

We discuss the non–autonomous nonlinear partial difference equations belonging to Boll classi?cation of quad graph consistent around cube. show how starting from compatible on a cell we can construct lattice equations, its Backlund transformations and Lax pairs. By carrying out algebraic entropy calculations that H4 trapezoidal H6 families are linearizable in few examples effectively linearize them.