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