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