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