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