Huh, that is a neat solution. I'm surprised I didn't find that sooner. Good solution. The beginning is a bit frustrating, but the rest is smooth sailing. Oh, I get it. Good simple high level pipelining concept tutorial/test. Got it in around 10 tries or less. Very nice solution. Beat it quickly, demoted from professor to Phd. Or as Screwtape calls it, I TealKnighted your level... That aside, that is quite the pair of 2-offs. Great puzzle. There is some brutal 2-offing in this puzzle. A supremely tricky puzzle for both its size (6 by 7) and its path length (64 moves). Had an easy time with this one. Nice tricks. Got it in one session, but it was a tricky one. So much happens in so few moves, even though it's currently 134 moves long.