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