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