Sukaku
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Poäng
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Tid
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Tryck på en siffra för att eliminera den från vald cell
Framsteg0%
Lätt · Sukaku
Byt svårighetsgrad ovan ↑
Hur man spelar Sukaku
Varje cell börjar med en uppsättning kandidatsiffror som visas som blyertsmarkeringar. Tryck på en siffra för att eliminera den kandidaten från den valda cellen. När endast en kandidat återstår placeras siffran automatiskt. Celler som visar en enda stor siffra är fixerade och kan inte ändras. Vanliga Sudoku-regler för rad, kolumn och box gäller.
Fullständig guide →
En anteckningsstilsvariant där ledtrådar ges som kandidatuppsättningar
Vad är Sukaku?
Sukaku (数角) är en Sudoku-variant där istället för givna siffror får varje cell en uppsättning möjliga kandidater. Lösaren måste eliminera kandidater med standard Sudoku-logik tills varje cell har exakt en kvarvarande kandidat. Vissa Sukaku-pussel ger mycket glesa kandidatuppsättningar (nästan fullständiga givna), medan andra ger fulla eller nästan fulla kandidatlistor, vilket kräver avancerade tekniker för att lösa.
Översikt
| Begränsningstyp | Pencilmark Elimination |
| Typiska givna | All candidates shown |
| Svårighetsbetyg | ★★★☆☆ 3/5 |
| Genomsnittlig lösningstid — Lätt | 8 min |
| Genomsnittlig lösningstid — Medel | 18 min |
| Genomsnittlig lösningstid — Svår | 35 min |
| Genomsnittlig lösningstid — Expert | 62 min |
Hur man löser Sukaku
| Teknik | Vad den gör | Nivå |
|---|---|---|
| Candidate Scanning | Start by scanning rows, columns, and boxes — any candidate appearing in only one cell in a group must be placed there. | Avancerad |
| 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. | Avancerad |
| Nakna singlar | 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. | Avancerad |
| Dolda singlar | 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. | Avancerad |
| 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. | Avancerad |
Genomsnittliga lösningstider
Lätt
8 min
Medel
18 min
Svår
35 min
Expert
62 min
Vanliga frågor
What is Sukaku?
Sukaku is a Sudoku variant where every cell in the 9×9 grid starts pre-filled with a set of pencilmark candidates instead of given digits. Your task is to eliminate incorrect candidates using standard Sudoku rules until exactly one digit remains in each cell. All 81 cells begin with multiple possibilities.
Hur skiljer sig Sukaku från vanlig Sudoku?
In classic Sudoku, some cells are pre-filled with confirmed digits. In Sukaku, no cell has a confirmed digit — instead, each cell shows a subset of possible digits as pencilmarks. The starting pencilmarks are curated by the puzzle constructor and are always consistent with the unique solution.
Are the starting pencilmarks always correct?
Yes. The pencilmarks shown at the start of a Sukaku puzzle represent a valid subset of candidates for each cell — they are never wrong, but they may include more candidates than strictly necessary. Your job is to eliminate all but the correct digit using logical deductions.
What techniques work best in Sukaku?
All standard Sudoku elimination techniques apply: naked singles (when only one candidate remains in a cell), hidden singles (when a digit can only go in one cell within a row, column, or box), naked pairs, pointing pairs, and advanced techniques like X-Wings and Swordfish. The absence of given digits means you rely entirely on elimination.
Is Sukaku harder than regular Sudoku?
Easy Sukaku is more forgiving than classic Sudoku because the pencilmarks are already provided — you never have to work out candidates from scratch. Hard and expert Sukaku puzzles with minimal starting candidates require the same advanced techniques as difficult classic Sudoku.
How long does Sukaku take to solve?
Easy puzzles take 5–15 minutes. Medium puzzles run 15–30 minutes. Hard puzzles average 30–60 minutes and expert puzzles can take over 90 minutes. Solve time scales with how many eliminations each technique step provides.