Sukaku

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Errori
0/3
Punteggio
-
Tempo
00:00
Tocca un numero per eliminarlo dalla cella selezionata
Nuova Partita
Progresso0%
Facile · Sukaku Cambia difficoltà sopra ↑
Come giocare a Sukaku
Ogni cella inizia con un insieme di cifre candidate mostrate come note. Premi un numero per eliminare quel candidato dalla cella selezionata. Quando rimane un solo candidato, la cifra viene inserita automaticamente. Le celle che mostrano una singola cifra grande sono fisse e non possono essere modificate. Si applicano le regole standard del Sudoku di riga, colonna e riquadro.
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Una variante in stile pencilmark dove gli indizi sono dati come insiemi di candidati

Cos'è Sukaku?

Sukaku (数角) è una variante del Sudoku in cui, invece di cifre date, ogni cella riceve un insieme di candidati possibili. Il risolutore deve eliminare i candidati usando la logica standard del Sudoku fino a quando ogni cella ha esattamente un candidato rimanente. Alcuni puzzle Sukaku forniscono insiemi di candidati molto radi (quasi completi), mentre altri forniscono elenchi di candidati completi o quasi completi, richiedendo tecniche avanzate per essere risolti.

A Colpo d'Occhio

Tipo di vincoloPencilmark Elimination
Dati tipiciAll candidates shown
Valutazione della difficoltà ★★★☆☆ 3/5
Tempo medio di risoluzione — Facile8 min
Tempo medio di risoluzione — Medio18 min
Tempo medio di risoluzione — Difficile35 min
Tempo medio di risoluzione — Esperto62 min

Come Risolvere Sukaku

TecnicaCosa faLivello
Candidate Scanning Start by scanning rows, columns, and boxes — any candidate appearing in only one cell in a group must be placed there. Avanzato
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. Avanzato
Singoli Nudi 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. Avanzato
Singoli Nascosti 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. Avanzato
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. Avanzato

Tempi Medi di Risoluzione

Facile
8 min
Medio
18 min
Difficile
35 min
Esperto
62 min

Domande Frequenti

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.
In cosa differisce il Sukaku dal Sudoku regolare?
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.
Prova Anche
Killer Sudoku
Another puzzle that opens with zero placed digits — cage sums replace pencilmarks as your only raw material.
Jigsaw Sudoku
Sharpens the same candidate-tracking discipline sukaku trains, with region shapes that twist your eliminations.
Diagonal Sudoku
Adds two more houses to feed your elimination engine — ideal for solvers who enjoy sukaku's systematic pruning.
Sfida Quotidiana