In the pre-review post of August 29, Cluster Extension by Not-Both Trials, a series of coloring cluster expansions were made by testing the not-both condition for AIC slink coloring. Like other trials, this tactic is considered extreme here in Sysudoku. My friend Gordon Fick responded with a grouped AIC ANL which keeps Only Extreme 3 in advanced Sysudoku territory. Here we use it, after the irregular XYZ, AIC nice loop, finned X-wing, and Sue de Coq of the pre-review post.
Here is the grid after the follow up of the Sue de Coq, showing the two AIC slinks under consideration for blue/green expansion.
Beginning in the NE, the AIC does a grouped 8-chain slink and reversed XY to 6-chain to XY terminal, removing two 8’s.
The follow up
brings the 6-wing that Gordon anticipated in his alert.
a new red/orange coloring traps 3r7c4 to wrap red and hand in the orange and blue solution.
Unless you consider Gordon’s AIC ANL extreme, and many would agree with that, Only Extreme 3 is only advanced.
Now to Only Extreme 46.