專家 Sukaku
一個無數字的變體 — 只給出鉛筆標記，而非最終答案。從候選集合而非已放置的數字開始解題。
專家 Sukaku. X翼 並在完全預先標記的棋盤上使用強制鏈。每個消除都必須被證明，而不是猜測。
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什麼是 Sukaku？
難度
★★★☆☆
3/5
約束類型
Pencilmark Elimination
典型給定數字
All candidates shown
平均解題（專家）
62 分鐘
解謎技巧（專家 等級）
| 技巧 | 描述 | 等級 |
|---|---|---|
| Candidate Scanning | Start by scanning rows, columns, and boxes — any candidate appearing in only one cell in a group must be placed there. | 初學者 |
| Cross-Hatch Elimination | When a digit is placed (or reduced to one candidate), eliminate it from all cells in the same row, column, and box. | 初學者 |
| 裸單 | A cell with only one remaining candidate is a naked single — the digit is forced. In Sukaku, this happens automatically when you eliminate down to one candidate. | 中級 |
| 隱藏單 | A candidate that appears exactly once in a row, column, or box must be placed in that cell regardless of how many other candidates that cell shows. | 中級 |
| Pair Elimination | Two cells in a group that share only the same two candidates form a naked pair — both candidates can be eliminated from all other cells in that group. | 進階 |
在 專家 需要掌握的技巧
- X翼技巧 — Expert sukaku gives minimal starting eliminations, simulating a classic grid mid-solve — fish are mandatory, and the printed marks at least spare you the bookkeeping.
- Swordfish technique — Tally each digit's column pattern across rows in the printed marks — expert sukaku grids are seeded so that one Swordfish unlocks the cascade that finishes the puzzle.
按難度劃分的平均解題時間
簡單
8 分鐘
中等
18 分鐘
困難
35 分鐘
專家
62 分鐘
想要規則、策略和解題步驟的完整解說？
如何遊玩 Sukaku →
相關變體
殺手數獨
Another puzzle that opens with zero placed digits — cage sums replace pencilmarks as your only raw material.
拼圖數獨
Sharpens the same candidate-tracking discipline sukaku trains, with region shapes that twist your eliminations.
對角線數獨
Adds two more houses to feed your elimination engine — ideal for solvers who enjoy sukaku's systematic pruning.
常見問題 — 專家 數獨庫
更多問題？請參閱完整 Sukaku 指南.