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