How do you solve sanity puzzle of drwood?

Answer 1

First cube: (cube with two yellow faces next to each other) - yellow on front, purple on top, green on back, green on bottom, blue on left, yellow on right

Second cube: (cube with two blue faces next to each other) - blue on front, blue on top, yellow on back, purple on bottom, green on left, green on right

Third cube: (cube with two purple faces next to each other) - purple on front, green on top, blue on back, yellow on bottom, yellow on left, purple on right

Fourth cube: (cube with 3 purple faces) - green on front, yellow on top, purple on back, blue on bottom, purple on left, purple on right

Faces should be:

Front: Y, B, P, G

Top: P, B, G, Y

Back: G, Y, B, P

Bottom: G,P,Y,B