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