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