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