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