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