Continuing of SVS - help asked for a list of fresh variants

[rob]

Is it helpful if we list puzzles that feature a useful rule components here as we come across them? Even if it's in the context of a hybrid?

E.g. today I ran across

* Friendly: all cells where the column or row matches the value are circled https://logic-masters.de/Raetselportal/R...?id=000JU5
* Kropki (local negativity): Kropki, with all dots given within cages https://logic-masters.de/Raetselportal/R...?id=000JU5
* Schrödinger: 9x9 grid with digits 0-9, each row and column has exactly one cell with two digits https://logic-masters.de/Raetselportal/R...?id=000JLP
* Nabner cages: Killer, but the cages are "anti-renban" https://logic-masters.de/Raetselportal/R...?id=000JLP