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