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