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