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