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