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