专家 不规则对角线数独
锯齿区域加上两个对角线约束——每个数字1–9必须在每行、每列、每个区域和对角线中出现一次。免费玩。
专家 不规则对角线数独。这是网站上最难的组合变体谜题——每一步都同时链式推理对角线、区域、行和列逻辑。
9
2
8
7
1
4
9
3
2
6
1
6
4
1
2
7
5
6
7
4
8
9
2
1
7
8
什么是不规则对角线数独？
难度
★★★★☆
4/5
约束类型
Combined: Irregular + Diagonal
典型给定数
22–30
平均解题 (专家)
65 分钟
专家 级别的解题技巧
| 技巧 | 描述 | 级别 |
|---|---|---|
| Map All 29 Units First | You have 9 rows + 9 columns + 9 irregular regions + 2 diagonals = 29 constraint units. Identify all irregular regions and both diagonals before starting. | 初级 |
| Diagonal–Region Intersection | Cells on a diagonal that also sit in the same irregular region create a powerful two-unit intersection — use both constraints simultaneously. | 中级 |
| Diagonal Pointing Pairs | If a digit on a diagonal is confined to one irregular region, eliminate it from all other cells of that region. | 中级 |
| Region Coloring for Diagonals | Trace which irregular regions each diagonal passes through. Regions with many diagonal cells are the most constrained. | 高级 |
| Chain Deduction Across Units | With 29 units, a forced digit in one unit often cascades through 3–4 other units. Track chains carefully to avoid errors. | 高级 |
在专家需要掌握的技巧
- X翼技巧 — Expert grids in this combined variant stall region logic deliberately — fall back to line-based fish, then re-run diagonal and region scans after each elimination.
- Swordfish technique — A Swordfish whose columns cross both diagonals propagates into the densest cells of the grid — expert irregular-diagonal endgames are sequenced around this cascade.
按难度划分的平均解题时间
简单
8 分钟
中等
18 分钟
困难
35 分钟
专家
65 分钟
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相关变体
对角线数独
Isolates the diagonal half of this variant — practise the two extra houses on a familiar 3×3 box layout.
锯齿数独
Isolates the jigsaw half — pure region-shape reading without the diagonal bookkeeping.
混沌构造
If 29 visible houses feel comfortable, try deducing the nine jigsaw regions yourself as part of the solve.
常见问题 — 专家 不规则对角线数独
更多问题？请参阅完整 不规则对角线数独指南.