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