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