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< Low Sums
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==Instructions== | ==Instructions== | ||
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==History== | ==History== | ||
Low Sums were invented in December 2017 by [http://www.tppd.de/en TPPD / Thade Precht Playful Design] and Christian Halberstadt. A [https://logic-masters.de/Raetselportal/Raetsel/zeigen.php?id=0002QJ 9x9 version] is presented in the Puzzle Portal. | |||
Low Sums are related to [http://wiki.logic-masters.de/index.php?title=High_Sums/en High Sums] | Low Sums are related to [http://wiki.logic-masters.de/index.php?title=High_Sums/en High Sums], while both puzzle types originated from [http://wiki.logic-masters.de/index.php?title=Rooftops/en Rooftops]. | ||
== Weblinks == | == Weblinks == | ||
* [http://www.tppd.de Homepage TPPD] | * [http://www.tppd.de/en Homepage TPPD] | ||
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Aktuelle Version vom 10. Februar 2018, 10:51 Uhr
Instructions
We are looking at a grid of 9x9 boxes. The objective is to fill the grid with digits so that each column and each row contains all of the digits from 1 to 9. The preprinted number in each box reflects the sum of the orthogonally adjacent smaller digits. Casually speaking: the smaller digits feed the preprints of the neighbouring larger digits.
History
Low Sums were invented in December 2017 by TPPD / Thade Precht Playful Design and Christian Halberstadt. A 9x9 version is presented in the Puzzle Portal.
Low Sums are related to High Sums, while both puzzle types originated from Rooftops.
Weblinks
