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