简单 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。
新手 对角线数独? 两条高亮对角线必须恰好包含1-9各一次——中心单元格位于两条对角线上，使其成为盘面上约束最多的单元格。从这里开始。
1
8
9
6
5
9
2
3
1
8
3
4
9
2
9
3
8
1
7
7
1
3
6
9
4
7
8
9
2
3
6
3
5
8
2
2
8
6
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 (简单)
4 分钟
简单 级别的解题技巧
| 技巧 | 描述 | 级别 |
|---|
准备深入探索?试试 中等 对角线数独 解锁中级技巧。
在简单需要掌握的技巧
- Last Free Cell technique — Rows that cross a diagonal empty out faster here — when hunting the final gap in a unit, remember the two diagonals count as units too.
- Last Possible Number technique — Diagonal cells are checked against four houses instead of three, so elimination often leaves a single candidate on the very first pass.
- 数独中的笔记 — When pencil-marking, strike candidates from a cell's diagonal as well as its row, column, and box — the 17 diagonal cells start with visibly shorter lists.
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 — 简单 对角线数独
更多问题？请参阅完整 对角线数独指南.