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