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