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