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