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