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