Your goal is to find the secret four-color code. The following colors are possible: black, red, brown, pink, white, green.
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', 'white', 'brown', 'green']. Hint: four colors are in the secret code but in the wrong positions.
Guess: ['black', 'red', 'red', 'brown']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['brown', 'green', 'white', 'red']. 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
green, green, pink, green brown, pink, red, black green, brown, white, red brown, white, pink, white