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