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