Your goal is to find the secret four-color code. The following colors are possible: purple, brown, yellow, blue, green, pink.
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: ['green', 'pink', 'yellow', 'brown']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['purple', 'purple', 'green', 'pink']. Hint: two colors are in the correct positions.
Guess: ['purple', 'blue', 'brown', 'pink']. Hint: one color is in the correct position and two colors are in the secret code but in the wrong position.
Guess: ['brown', 'purple', 'pink', 'pink']. Hint: two colors are in the correct positions.
A B C D
green, pink, pink, green yellow, purple, blue, pink brown, purple, blue, purple yellow, green, brown, blue