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