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