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