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