Thought this was cool so I thought I would share it with you guys... I was right 3 out of 5 samples but just guessed cause they both sounded good to me. Let me know how you do.

"The Helix Challenge"
"Our goal with Helix was to accurately capture the sound and responsiveness of each amp and now we’re asking you to tell us how we did. For this challenge we have chosen a handful of the most elusive (and exciting) amp sounds to model and compare side-by-side to the original amp. You will be offered a total of five sound samples, and will be asked to choose which one you believe is the original amp. You can take the test as many times as you like, but the test is randomised, so you may get different samples each time. The guitar playing you’ll hear is identical; the guitar signal was split to both the amp and to Helix. If you want to see exactly how we recorded the samples, check out the video below.
Good luck and have fun."