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