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