专家 对角线数独
两条主对角线也必须包含1-9且不重复。四个单元而不是三个——约束密度加倍。
专家 对角线数独。这是网站上最难的谜题——每个单元格有五个约束组，已知数非常少。每个数字的放置都来自精确逻辑。无需猜测。
6
3
1
7
4
3
8
2
4
3
7
9
4
5
1
8
5
4
7
1
6
6
9
7
4
9
1
什么是对角线数独？
难度
★★☆☆☆
2/5
约束类型
额外区域
典型给定数
22–28
平均解题 (专家)
40 分钟
专家 级别的解题技巧
| 技巧 | 描述 | 级别 |
|---|---|---|
| Diagonal as a Unit | Treat each diagonal exactly like a row or column — every digit 1–9 appears exactly once. Standard scanning and counting apply. | 初级 |
| Diagonal–Box Interaction | When a digit on a diagonal is confined to one box segment, eliminate it from the rest of that box. | 中级 |
| Diagonal Naked Pairs | If two cells on a diagonal share the same two candidates, eliminate those values from all other diagonal cells. | 中级 |
| Three-Unit Intersection | A cell on the main diagonal also belongs to a row, column, and box — four constraint units simultaneously — maximising elimination power. | 高级 |
在专家需要掌握的技巧
- X翼技巧 — Expert diagonal grids hide X-Wings whose only useful eliminations land on the diagonals — re-scan both diagonals after every fish you complete.
- Swordfish technique — A Swordfish with corners near r1c1, r5c5, or r9c9 cascades its column eliminations into the diagonal houses; expert puzzles here are built around exactly this interaction.
按难度划分的平均解题时间
简单
4 分钟
中等
10 分钟
困难
20 分钟
专家
40 分钟
想要规则、策略和解题步骤的完整指南吗？
如何玩对角线数独 →
相关变体
不规则对角线数独
Keeps both diagonal houses you've learned to scan and adds jigsaw regions for an even denser constraint web.
超数独
The same extra-region idea — four shaded windows instead of two diagonals — so your habit of scanning bonus houses transfers directly.
锯齿数独
If you enjoy adapting your scan to new house shapes, jigsaw regions stretch that skill further than straight diagonal lines.
常见问题 — 专家 对角线数独
更多问题？请参阅完整 对角线数独指南.