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