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