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