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