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