德式低語

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.

如需完整規則、範例解題及解題技巧，請閱讀完整 如何遊玩 德式低語 指南。

與所有數獨變體一樣，德式低語建立在經典的9×9基礎上。每行、每列和每個3×3宮必須包含每個數字1到9恰好一次。變體約束是 添加在頂部 這些標準規則，從不取代它們。

如果你是數獨新手，先學習 基本規則和技巧 在嘗試變體之前。