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