Suguru
Rules[edit]
Place a digit in each empty cell such that every thickly outlined region of size N contains all digits from 1 to N. The same digits do not touch each other, even diagonally.
(Rules and example from WPC 2017 IB)
Minor variants[edit]
- Suguru Diagonal: From WPC 2018/Round 2. Marked diagonal contains each of the numbers from 1 to the size of the grid.
- Capsules: A different name for the puzzle; it sometimes refers to a specific version of Suguru where all regions have a size of 5 cells.
- WPC 2016/Round 12 had a Capsules puzzle using 5 letters ("MINSK") instead of numbers.
History of the puzzle[edit]
Invented by Naoki Inaba (Japan) in 2001 under the name "ナンバーブロック" ("Number Block"). [1] The name "Suguru", a contraction of "Suji gurupu" ("Number group") is given by Puzzler Media Ltd (UK). According to them, the original name "did not sufficiently reflect the qualities of" the puzzle. [2]
Appearances in the past WPCs[edit]
- WPC 2018/Round 2 (Suguru, Suguru Diagonal) by Jiří Hrdina
- WPC 2017/Round 9 by Swaroop Guggilam
- WPC 2016/Round 12 by Matúš Demiger
- WPC 2013/Final