困難不規則對角線數獨
拼圖區域加上兩個對角線約束——每個數字1-9必須在每行、每列、每個區域和每條對角線中出現一次。免費遊玩。
困難 不規則對角線數獨。較少的給定數字、複雜的區域形狀和緊密的對角線約束——多步驟 筆記 工作需要。
5
9
6
1
2
5
7
6
7
3
4
2
3
1
3
5
7
4
8
5
6
5
2
6
7
3
8
什麼是 不規則對角線數獨？
難度
★★★★☆
4/5
約束類型
Combined: Irregular + Diagonal
典型給定數
22–30
平均解題時間（困難）
35分鐘
解題技巧：困難 等級
| 技巧 | 描述 | 等級 |
|---|---|---|
| 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. | 初學者 |
| 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. | 中級 |
| Diagonal Pointing Pairs | If a digit on a diagonal is confined to one irregular region, eliminate it from all other cells of that region. | 中級 |
| Region Coloring for Diagonals | Trace which irregular regions each diagonal passes through. Regions with many diagonal cells are the most constrained. | 進階 |
| 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. | 進階 |
準備好終極測試了嗎？試試 專家 不規則對角線數獨 — 數獨 上最難的謎題。
在 困難 需要掌握的技巧
- Hidden Pairs technique — With 29 overlapping houses, candidate counts drop unevenly — recount the diagonal cells after region eliminations, because that's where hard grids hide two digits in two cells.
- X-Wing 技巧 — Rows and columns here are classic, so X-Wings work untouched — and any corner that lands on a diagonal exports its elimination into a fourth house.
依難度平均解題時間
簡單
8分鐘
中等
18分鐘
困難
35分鐘
專家
65分鐘
想要規則、策略和解題步驟的完整演練嗎？
如何遊玩 不規則對角線數獨 →
相關變體
對角線數獨
Isolates the diagonal half of this variant — practise the two extra houses on a familiar 3×3 box layout.
拼圖數獨
Isolates the jigsaw half — pure region-shape reading without the diagonal bookkeeping.
混沌建構
If 29 visible houses feel comfortable, try deducing the nine jigsaw regions yourself as part of the solve.
常見問題 — 困難 不規則對角線數獨
還有問題？請參閱完整 不規則對角線數獨指南.