Sukaku
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Pisteet
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Aika
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Napauta numeroa poistaaksesi sen valitusta solusta
Edistyminen0%
Helppo · sukaku
Vaihda vaikeustasoa ylhäältä ↑
Kuinka pelata Sukakua
Jokainen solu alkaa joukolla ehdokasnumeroita, jotka näytetään kynämerkkeinä. Paina numeroa poistaaksesi kyseisen ehdokkaan valitusta solusta. Kun vain yksi ehdokas on jäljellä, numero asetetaan automaattisesti. Solut, joissa näkyy yksi suuri numero, ovat kiinteitä eikä niitä voi muokata. Tavallisia sudokun rivi-, sarake- ja laatikko sääntöjä sovelletaan.
Täydellinen opas →
Pencilmark-style variantti, jossa vihjeet annetaan ehdokasjoukkoina
Sukaku Helppo
Sukaku Keskitaso
Sukaku Vaikea
Sukaku Asiantuntija
Mikä on Sukaku?
Sukaku (数角) on Sudoku-variantti, jossa annettujen numeroiden sijaan jokaiselle solulle annetaan joukko mahdollisia candidates. Ratkaisijan on poistettava candidates käyttämällä standard Sudoku logic, kunnes jokaisessa solussa on täsmälleen yksi jäljellä oleva candidate. Jotkut Sukaku-pulmat tarjoavat hyvin harvoja candidate sets (near-complete givens), kun taas toiset tarjoavat täydelliset tai lähes täydelliset candidate lists, mikä vaatii advanced techniques ratkaisemiseen.
Yhdellä silmäyksellä
| Rajoitetyyppi | Pencilmark Elimination |
| tyypilliset aloitusluvut | All candidates shown |
| Vaikeustasoarvio | ★★★☆☆ 3/5 |
| Keskim. ratkaisuaika — Helppo | 8 min |
| Keskim. ratkaisuaika — Keskitaso | 18 min |
| Keskim. ratkaisuaika — Vaikea | 35 min |
| Keskim. ratkaisuaika — Asiantuntija | 62 min |
Kuinka ratkaista Sukaku
| Tekniikka | Mitä se tekee | Taso |
|---|---|---|
| Candidate Scanning | Start by scanning rows, columns, and boxes — any candidate appearing in only one cell in a group must be placed there. | Edistynyt |
| 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. | Edistynyt |
| Paljaat yksiköt | 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. | Edistynyt |
| Piilotetut ykköset | 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. | Edistynyt |
| 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. | Edistynyt |
Keskimääräiset ratkaisuajat
Helppo
8 min
Keskitaso
18 min
Vaikea
35 min
Asiantuntija
62 min
Usein kysytyt kysymykset
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.
Miten Sukaku eroaa tavallisesta Sudokusta?
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.