Your goal is to find the secret four-color code. The following colors are possible: white, green, purple, blue, 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: ['green', 'red', 'purple', 'white']. Hint: two colors are in the correct positions.
Guess: ['white', 'white', 'purple', 'purple']. Hint: none of the guessed colors are present in the secret code.
Guess: ['blue', 'blue', 'green', 'green']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['green', 'red', 'blue', 'red']. Hint: three colors are in the correct positions.
A B C D
green, red, blue, brown blue, red, red, blue purple, white, blue, green green, purple, green, blue