Straight sudoku [WSC 2015]

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Fred76
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Straight sudoku [WSC 2015]

Post by Fred76 » Sun 17 Feb, 2019 12:42 pm

26 - straight sudoku.png
26 - straight sudoku.png (34.05 KiB) Viewed 1536 times
Source: 2015 WSC, Sofia

Potential issue: lack of regions. Here we have only one "full" regions, and a few other renban groups, which can be described as deficit regions. The major part of the grid has no third constraint (i don't consider a single cell as a deficit region).

I chosed the competition puzzle because the example in the instructions booklet was more acceptable in my opinion, with more cells being part of a renban group.

Fred76
Posts: 170
Joined: Mon 09 Aug, 2010 1:53 pm
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Re: Straight sudoku [WSC 2015]

Post by Fred76 » Sun 17 Feb, 2019 12:44 pm

I think this puzzle has some similarities with Zilina sudoku: viewtopic.php?f=33&t=1931

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