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