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