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