Your goal is to find the secret four-color code. The following colors are possible: green, purple, pink, blue, brown, white.
Some guesses have already been made. I will provide feedback for each guess made with which it is possible to unambigiously determine the secret code.

Previous Guesses:
Guess: ['purple', 'pink', 'blue', 'white']. Hint: three colors are in the correct positions.
Guess: ['green', 'purple', 'purple', 'white']. Hint: one color is in the correct position.
Guess: ['green', 'pink', 'pink', 'brown']. Hint: one color is in the correct position and one color is in the secret code but in the wrong position.
Guess: ['pink', 'pink', 'blue', 'white']. Hint: three colors are in the correct positions.
A B C D
brown, pink, blue, white blue, green, brown, green white, green, blue, brown purple, pink, brown, purple