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