德国耳语

Neighbouring cells on each green line must differ by 5 or more, which splits every line into alternating low (1–4) and high (6–9) cells — and bans 5 outright. Mark each line cell low or high and half the work is done. Distinctive, polarising, and great training for candidate discipline.

有关完整规则、示例和解题技巧，请阅读完整的 如何玩德国耳语 指南。

与所有数独变体一样，德国耳语建立在经典的9×9基础上。每行、每列和每个3×3宫必须恰好包含每个数字1到9一次。变体约束是 添加在顶部 这些标准规则的一部分，从不替换它们。

如果你是数独新手，请先学习 基本规则和技巧 在尝试变体之前。