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