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