Sukaku
3
7
4
8
2
9
6
5
1
1
8
5
7
3
6
2
9
4
9
6
2
4
1
5
3
7
8
6
9
3
1
8
7
4
2
5
4
1
8
6
5
2
7
3
9
2
5
7
9
4
3
8
1
6
5
3
9
2
6
4
1
8
7
8
2
6
5
7
1
9
4
3
7
4
1
3
9
8
5
6
2
Errores
0/3
Puntuación
-
Tiempo
00:00
Toca un número para eliminarlo de la celda seleccionada
Progreso0%
Fácil · Sukaku
Cambia la dificultad arriba ↑
Cómo jugar a Sukaku
Cada celda comienza con un conjunto de dígitos candidatos mostrados como marcas de lápiz. Presiona un número para eliminar ese candidato de la celda seleccionada. Cuando solo queda un candidato, el dígito se coloca automáticamente. Las celdas que muestran un solo dígito grande están fijas y no se pueden modificar. Se aplican las reglas estándar de fila, columna y caja del Sudoku.
Guía completa →
Una variante de estilo de marcas de lápiz donde las pistas se dan como conjuntos de candidatos
Qué es Sukaku?
Sukaku (数角) es una variante de Sudoku donde, en lugar de dígitos dados, cada celda recibe un conjunto de candidatos posibles. El solucionador debe eliminar candidatos usando la lógica estándar del Sudoku hasta que cada celda tenga exactamente un candidato restante. Algunos rompecabezas de Sukaku proporcionan conjuntos de candidatos muy escasos (casi completos), mientras que otros proporcionan listas de candidatos completas o casi completas, requiriendo técnicas avanzadas para resolver.
De un Vistazo
| Tipo de restricción | Pencilmark Elimination |
| Valores dados típicos | All candidates shown |
| Valoración de dificultad | ★★★☆☆ 3/5 |
| Tiempo de resolución prom. — Fácil | 8 min |
| Tiempo de resolución prom. — Medio | 18 min |
| Tiempo de resolución prom. — Difícil | 35 min |
| Tiempo de resolución prom. — Experto | 62 min |
Cómo resolver Sukaku
| Técnica | Qué hace | Nivel |
|---|---|---|
| Candidate Scanning | Start by scanning rows, columns, and boxes — any candidate appearing in only one cell in a group must be placed there. | Avanzado |
| 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. | Avanzado |
| Singles desnudos | 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. | Avanzado |
| Singles ocultos | 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. | Avanzado |
| 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. | Avanzado |
Tiempos de Resolución Promedio
Fácil
8 minutos
Medio
18 minutos
Difícil
35 minutos
Experto
62 minutos
Preguntas frecuentes
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.
¿En qué se diferencia Sukaku del Sudoku regular?
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.