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