曲线/管道/风车 Sudo-Kurve

管道数独是一类数独。在管道数独中，单元格被管道连结起来，数字在行、列、宫和管道内都不能重复。

Sudo-Kurve is a type of variant. In Sudo-Kurve, cells are combined by pipes, and numbers cannot repeat in each Row, Column, Boxes and each pipe.

类型1 风车 Windmill

类型2 糖果 Candy

类型3 其他Others

◆管道Pipes

这类数独在中国数独锦标赛中出现过。

This kind of the Sudo-Kurve appeared in China Sudoku Competition. 

The example is designed by Sudoku52. 

这个结构里存在潜规则。

Hidden Rules may exist in this shape.

◆其他Others

Designed by @Sudoku52

Picture made by unknown friends.