Easy - Killer Sudoku as a puzzle type isn't that old. That, and for many of them it never comes up anyhow. I think that rule was only adopted since the whole idea in the first place was to combine Sudoku with Cross Sums; KenKen has no equivalent rule, and is better for it.
...Yours was a rhetorical question, wasn't it? - ZM
Yesterday's Croco-Puzzle required the no-duplicates-in-a-cage rule to arrive at a unique answer, and of course, when I made a guess I got the wrong one. Also, I made a typo, so that meant two failures.
Actually, my co-author on most things sudoku thinks the no repeat rule is not a requirement of Killers and has made several puzzles that don't use it. I've tried to discourage him on this, as everywhere else I see them it is in place, but the WSC in Philadelphia was the other way and in the playoffs it threw the finalists for a loop because 23 in 3-cells was not forced to be 9+8+6. As zotmeister said, the repeats are a fun different dimension to explore in TomTom/Calcudoku style puzzles, but probably not in Killers.
![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
no subject
...Yours was a rhetorical question, wasn't it? - ZM
no subject
Yesterday's Croco-Puzzle required the no-duplicates-in-a-cage rule to arrive at a unique answer, and of course, when I made a guess I got the wrong one. Also, I made a typo, so that meant two failures.
no subject