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