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