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