Sudoku Variants Series (376) - Sudoku Watchtowers
(Published on 20. July 2022, 02:00 by Richard)
Sudoku Watchtowers
The idea of Watchtowers comes from Angelo, although all of his brilliant Watchtower sudokus are combined with other variants (Sandwich, Thermos, Arrows (1), Arrows (2).) All of those deserve more solves, so try them yourself!
Solve online in F-Puzzles or CtC-app (thx Nick Smirnov!)
Apply classic sudoku rules.
A digit N in a grey cell represents a watchtower, that can overlook exactly N cells, including itself, with digits smaller than N in all four directions up to the first larger digit in that direction. All possible watchtowers are given.
Solution code: Row 8, followed by column 2.
Comments
on 4. October 2022, 16:16 by pin7guin
Schöne Variante. Hat Spaß gemacht!
on 1. August 2022, 10:37 by Lizzy01
Very nice! Two stars difficulty in my opinion.
Sorry to bother you again, but you might be interested in this puzzle I set using watchtowers:
https://logic-masters.de/Raetselportal/Raetsel/zeigen.php?id=000AN6
It was partially inspired by this one, but much harder...
on 23. July 2022, 11:08 by ibag
Das hat Spaß gemacht! ;-)
on 20. July 2022, 22:48 by peacherwu2
Harder than current rating.
on 20. July 2022, 19:05 by Angelo
Thank you very much for giving this constraint a go and also thank you for the shoutout to my puzzles! I believe you have created the first sudoku with only watchtowers as constraint and it was a fantastic one!
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Thanks!
I am always trying to make variants with only one ruleset, altough I like crossovers a lot too. Main reason for my interest in only one constraint is that I am involved in Sudoku championships and competitions, and there the majority of puzzles has only one rule. I think that's by it's nature. Crossovers tend to be harder, and in championships there is always a time limit; top players should not spend more than 10-12 minutes on the hardest puzzles.
on 20. July 2022, 18:31 by cam
Very nice puzzle! Really interesting and fun logic :)
on 20. July 2022, 18:05 by Qodec
So different from Angelo's puzzles, and so interesting! Thank you very much!
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Thank you very much! That means a lot to me! :-)
on 20. July 2022, 14:22 by marcmees
Had to take a closer look at the example to discover an obvious truth I had overlooked. Very nice. Thanks.
on 20. July 2022, 08:42 by Jesper
Very nice, thanks Richard!
on 20. July 2022, 06:02 by Richard
Added links and tag for online solving. Thx Nick!
on 20. July 2022, 03:56 by Nick Smirnov
F-puzzles:
https://f-puzzles.com/?id=2bhxxt23
CTC App:
https://tinyurl.com/23av9c2c
