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