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