Author: 真笑(洪卫华), from China, this question comes from his personal blog.
This is the 3th part of the series of dividing areas.The last Chaos Construction series:
This is the third part of the series of dividing areas. In order to avoid "flooding", this part plans to publish two difficult problems, one each for 7*7 and 9*9.
According to the following rules, the grid is divided into 7 different rigions, each regions contains 7 cells:
1.Fill in a number from 1-7 in each region, and make each row, column and region have no repeated numbers;
2. A white circle indicates that the 4 cells arrounded belong to the same region,All white circles are given;
3.Whenever a cell has only one adjacent cell in the same region, the numbers in both cells are given outside the grid in the direction of the adjacent cell (in the correct order).
Click enter Penpa+
Sample picture.If you need practice, you can try this question. :)
Click enter Penpa+ Thanks SirWoezel.
“老子”（Lao Zi），was born in Kuxian County of Chu State in the late Spring and Autumn Period of Zhou Dynasty in China (571 BC-471 BC), one of the world's one hundred historical celebrities, ancient Chinese thinker, philosopher,literary and historian, founder and main representative of Taoist school.In Taoism, he is revered as the ancestor of Taoism, and he is called "the Great Laojun." The core of Laozi's thinking is simple dialectics, which advocates the rule of doing nothing, teaching without saying, and the principle of the opposite. Lao Tzu is the ancestor of Taoism's dual cultivation of both life and life. Author of "Tao De Jing" (also known as "Lao Zi"), is one of the world's most widely published works.
Lösungscode: In the reading direction (from top to bottom, from left to right), the content of the irregular area where R3C3 is located, and the content of the irregular area where R5C5 is located, a total of 14 grids(for example, in the example, the content of the irregular area where R3C4 and R5C4 are located: 12364754231567).
am 16. Januar 2021, 14:44 Uhr von cdwg2000
Thanks your kind feedback.
am 16. Januar 2021, 00:51 Uhr von SudokuExplorer
Thanks for the creative series!
The rules are clearly worded in conjunction with the example.
am 16. Januar 2021, 00:18 Uhr von cdwg2000
Your rule description is perfect, thank you!
am 16. Januar 2021, 00:00 Uhr von Dandelo
Maybe you could better say:
Whenever a cell has only one adjacent cell in the same region, the numbers in both cells are given outside the grid in the direction of the adjacent cell (in the correct order).
I'm no native speaker, too. Maybe they can improve this.
******I think your description is very good, thank you!
am 15. Januar 2021, 23:53 Uhr von marcmees
Just confused not knowing where to start at first.The rules are clear.
******Thank you for your feedback, I adopted Dandelo's suggestion.
am 15. Januar 2021, 23:51 Uhr von Dandelo
I only understood the rules by looking at the example. When I've read U-shaped, it took some time to understand, that the edges are U-shaped and not the regions.
am 15. Januar 2021, 23:17 Uhr von cdwg2000
Glad you like it, thank you for your kind comments. Can you let me know your confusion? For example, the rule description (my English is really bad), thank you!
am 15. Januar 2021, 16:05 Uhr von marcmees
very nice... looks confusing at the start, as does every new variant, but solves nice and logically. Thanks
am 15. Januar 2021, 13:14 Uhr von SirWoezel
Agree with Dandelo. Very good puzzle!
am 15. Januar 2021, 12:53 Uhr von Dandelo
Very nice concept. And also the puzzle is very good.
am 15. Januar 2021, 12:13 Uhr von SirWoezel
This is a penpa link for your 'main course':
am 15. Januar 2021, 11:32 Uhr von SirWoezel