Draco wrote:daj95376 wrote:...I'll even accept chains if someone can show how to reduce the number needed without having to perform combinatorics on all possibilities.

Best I can do is 3 nets and one chain before SSTS will crack it. Happy to post the steps if you're interested, but I suspect that is more steps than you'd like.

I appreciate your effort, but already have a solution using: 2x chains, a SIN, and several non-chain techniques.

There were six original chains reported by my solver. Of those, two were necessary. They reduced the puzzle to where one SIN opened the puzzle to where lesser techniques completed it.

I was hoping that someone had a way of selecting the

necessary chains from the

also there chains. Failing that, I was wondering if anyone had an alternate solution that wasn't too involved.

Thanks again for working on this puzzle/problem.