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