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