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