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