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