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