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