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