On Andrew Stuart's Wikipedia site puzzle 190 in his series of <weekly unsolvable> puzzles has attracted the interest of a blogger <John Welch>. This puzzle contains a single JE2 pattern which converts into a double JE4 when the standard pattern eliminations are made and so provides a quick route to allowing a solution to be found using standard methods.
I fell on his blog last week as a result of a Google search where he announced he would cover the topic this week. Consequently I posted my solution to puzzle 190 on Andrew's site – just in case. (This week's unsolvable, number 197, also contains a JExocet for which I have also posted a solution.)
In this week's blog Welch references the JExocet Compendium thread, which pleases me, but then misinterprets the analysis given there, which doesn't. Perhaps I failed to be clear enough in my writing, but I don't feel too bad as it was his choice to remain a remote onlooker rather than a contributor here.
However, what Welch advocates in his own home-spun terminology may interest some readers. It seems to be a templating type system for finding base digits and target cells which could extend the scope of the Exocet (as opposed to the Junior Exocet) approach.
David P Bird