Sukaku WXYZ-Ring

The four cells A6, B6, G6 and A5 form a double-linked Wing, called a Ring.

The three cells A6, B6 and G6 are an Almost Locked Set (ALS) that is double-linked to the bivalue cell A5 through both values 3 and 5 to create a ring/loop. Regardless of the value of A5, the double-link forces the three ALS cells to have a different value to A5, so these four values are "locked into" these four cells, ergo it's a Locked Set. Hence all of the Rings values can be removed from other cells which see all occurrences of that value in the Ring.

Therefore we can remove H6-2.