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