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