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