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