Oh man I’ve done this one before, but brain is failing me. Something like 1-4 vs 5-8, then one of those groups vs 9-12, then 1 and 2 vs 11 and 12 (those dependant on heavier/lighter).
I had a similar idea. Break them into three groups of four but then got confused about where to go after you compare the three groups against one another without running out of tries. Hmmmmmmm.
I’m pretty sure this works, but I’m tired so I may have missed something. It also doesn’t seem like the most efficient solution, which is worrying.
-Scale 1—————Scale 2———-Aside
1,2,3,4,5,———–7,8,9,10,12——6,11,13
1,3,7,9,11———–2,4,6,8,10——–5,12,13
1,2,7,8—————3,4,9,10———–13
This should result in the following mapping, where L: left side is light, R: right side is light, and B: the two are perfectly balanced (as all things should be).
You’re definitely on the right track… but it looks like you’re assuming the fake is lighter than the others. What if it’s heavier? This test can’t distinguish between #1 being lighter and #10 being heavier.
I suppose it would have been wise to read the specifications a bit more carefully. I think I removed all the symmetric cases, although it still feels like I’m missing something. It worries me that I did not use the dummy stone.
Thanks much to all who helped get this going. Especially TK. I did purchase 2 but would like to get in on the 2nd round of different LEDs. I would like to be able to purchase 2 more at the discounted rate when those come in. I am not exactly sure how that is going to work but if it means I am to comment again then consider this to be the post. Good luck all!