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