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