1. Classic Sudoku rules applied;
2. All four digits containing 2 odd and even 2 are marked with numbers or symbols;
3. The number of hints is the biggest number and smallest number of the four digits.
4.The triangle means that the biggest and smallest numbers in the four digits are both odd numbers.The square indicates that the biggest and smallest numbers in the four digits are even numbers.
Solution code: Row 9,Coloum 9.
on 10. December 2020, 23:23 by cdwg2000
@Qodec
Thank you for your reminder, I will slow down, 真笑's blog address: https://weibo.com/u/2286428464
on 10. December 2020, 21:11 by Qodec
Dear cdwg2000, I would appreciate it if you slowed down the number of published puzzles considerably. There are several other authors out here who publish beautiful puzzles that deserve attention as well.
I would also very much like to see one of the personal blogs you mention with my own eyes.
on 10. December 2020, 15:43 by cdwg2000
Add F-puzzles link. @PetLov,Thanks your help.
on 10. December 2020, 15:31 by PetLov
Here´s a link to F-puzzles.
The triangles are made into circles.
https://f-puzzles.com/?id=y49y5jzw