专家 不规则数独
锯齿形状的区域取代了3×3宫。行、列和不规则区域必须各自包含1–9。无需下载，无需登录。
专家 不规则数独。这是网站上最难的锯齿数独谜题——每个数字的放置都需要跨区域、行和列的多约束推理。无需猜测。
6
7
8
3
1
2
5
8
1
1
8
6
9
4
5
7
7
5
8
6
4
9
6
2
7
5
什么是锯齿数独？
难度
★★★☆☆
3/5
约束类型
不规则区域
典型给定数
24–30
平均解题 (专家)
60 分钟
专家 级别的解题技巧
| 技巧 | 描述 | 级别 |
|---|---|---|
| Region Identification First | Identify all 9 irregular regions by their colour coding before solving. Region membership determines the third constraint unit for each cell. | 初级 |
| Region Counting | Each region must contain 1–9. Counting completed rows and columns reveals how many of each digit can still fit in each region. | 中级 |
| Region–Row/Column Intersection | If a digit within a region is confined to one row or column, eliminate it from the rest of that row or column. | 中级 |
| Irregular Naked Subsets | Apply naked pairs and triples within each irregular region exactly as you would within standard 3×3 boxes. | 高级 |
在专家需要掌握的技巧
- X翼技巧 — Expert jigsaw grids exploit the law-of-leftovers along region borders; once line logic stalls, fall back to X-Wings on rows and columns, which ignore region shapes entirely.
- Swordfish technique — Because regions can't be trusted to behave like boxes, expert jigsaw endgames lean on pure line-based fish — a Swordfish here needs no region reasoning at all.
按难度划分的平均解题时间
简单
7 分钟
中等
16 分钟
困难
32 分钟
专家
60 分钟
想要规则、策略和解题步骤的完整指南吗？
如何玩锯齿数独 →
相关变体
不规则对角线数独
Your jigsaw region-reading skills plus two diagonal houses — the natural step up in constraint density.
混沌构造
Jigsaw solving where the regions themselves are hidden — you deduce the borders while you place the digits.
武士数独
Scales the geometry challenge a different way: five overlapping grids whose shared boxes pass information between them.
常见问题 — 专家 不规则数独
更多问题？请参阅完整 不规则数独指南.