#A39: NIKOJI

 Nikoji is an old favorite of mine because of how easy it is to incorporate themes through words and phrases. The overall logic for solving a Nikoji tends to fall into one of two categories; both types of puzzles are included here. Both of these puzzles were created on graph paper, so the variant rule in the second was originally unintentional.

I wouldn't be surprised if this first one has already been made before. It might be harder than the second.

https://puzz.link/p?nikoji/7/2/eh9hbfhah9

Variant: The N region is a rotated version of the Z region, and thus will throw an error for having the same shape.

https://puzz.link/p?nikoji/v:/12/14/bgfkem45r3j9ag-10j5rdr2h6h-10-15-1a-1ac5g5hfg-13-11-151-125h-12h-15r-12r-14jag-10gai5r5q9ej