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