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