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