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