專家不規則對角線數獨
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。
專家 不規則對角線數獨。網站上最難的組合變體謎題——每一步都同時鏈接對角線、區域、行和列邏輯。
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（專家）
65分鐘
解題技巧：專家 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 |
在 專家 需要掌握的技巧
- X-Wing 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.
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
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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 — 專家 不規則對角線數獨
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