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