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