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