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