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