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