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