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