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