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