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