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