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