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