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