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