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