困难 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。
困难 不规则数独。复杂的区域形状，更少的已知数——期待跨区域的指向对、隐集和持续的 候选数标记 工作。
3
1
5
5
6
8
2
1
4
9
5
6
4
8
9
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8
9
1
2
8
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9
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5
2
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 (困难)
32 分钟
困难 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 |
准备好终极测试了吗?试试 专家 锯齿数独 — 数独 上最难的谜题。
在困难需要掌握的技巧
- Hidden Pairs technique — Irregular region geometry hides pairs in cells that share a region but no row or column — deliberately recount candidates region-by-region or you will never see them.
- X翼技巧 — Rows and columns are unchanged by jigsaw regions, so classic X-Wings still work — and they're often the only move left when region logic stalls in hard puzzles.
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 — 困难 不规则数独
更多问题？请参阅完整 不规则数独指南.