I really like this solution. I spotted the right idea as I was going through my first solution that was 2-off, but didn’t think it would actually work. Would’ve been cool if I had tried it, but I’m happy to have seen it so quickly anyway. Very nice indeed.
100 tries and I still can't get this...
13 years later, tries definitely exceeded 200... but I got it! Trick was not where I expected it would be. Neat.