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