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