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