Cómo jugar a Skyscraper Sudoku
Las pistas externas muestran cuántos 'edificios' son visibles desde ese borde.
Las reglas
Se aplican las reglas estándar del Sudoku: rellena cada fila, columna y caja de 3×3 con los dígitos del 1 al 9, cada uno apareciendo exactamente una vez.
El Sudoku Rascacielos imagina cada dígito como un edificio de esa altura. Las pistas fuera de la cuadrícula indican cuántos edificios se pueden ver mirando desde ese borde hacia adentro — un edificio más alto bloquea todos los edificios más bajos detrás de él. Una pista de 1 significa que el primer edificio debe ser un 9. Una pista de 9 significa que los edificios están dispuestos en orden estrictamente creciente (1,2,3,4,5,6,7,8,9). Esta variante requiere tanto lógica de Sudoku como razonamiento de permutaciones.
Para saber de dónde viene este puzle, cómo se compara con variantes relacionadas y un resumen de estrategia, consulta nuestro Skyscraper Sudoku visión general de variantes.
De un Vistazo
Cómo resolver Skyscraper Sudoku
Preguntas Comunes
¿Qué es Skyscraper Sudoku? ▾
Skyscraper Sudoku is a variant where numbers appear outside the grid on all four sides. Each number tells you how many distinct 'buildings' (digits) are visible when looking into that row or column from that side. Taller buildings hide shorter ones behind them — a larger digit blocks any smaller digit placed further into the row.
How does visibility work in Skyscraper Sudoku? ▾
Imagine the digits in a row as buildings of different heights. Looking from one end, you can see a building only if no taller building stands between you and it. A clue of 1 means only the first building is visible, so it must be the tallest (digit 9). A clue of 9 means all buildings are visible, so the row must be in ascending order from that side.
What do extreme clue values tell me? ▾
A clue of 1 means the first cell from that side holds a 9 — it blocks everything else. A clue of 9 means the row or column is in strictly ascending order from that direction (1,2,3,4,5,6,7,8,9). Both are immediately actionable. Mid-range clues require enumerating valid permutations.
Is Skyscraper Sudoku harder than regular Sudoku? ▾
Yes, generally. Skyscraper clues require enumerating valid digit permutations for each row and column, which is more combinatorially intensive than classic Sudoku elimination. Easy puzzles are accessible; hard and expert puzzles require tracking visibility across multiple rows and columns simultaneously.
What is the best first strategy for Skyscraper Sudoku? ▾
Start with clues of 1 and 9 — they immediately fix a digit or fully determine the order of a row. Then look for clues of 2, which constrain the position of the 9 significantly. Combine skyscraper deductions with standard Sudoku box and row/column scans.
How long does Skyscraper Sudoku take to solve? ▾
Easy puzzles take 8–20 minutes. Medium puzzles run 20–40 minutes. Hard puzzles average 40–75 minutes and expert puzzles often exceed 90 minutes. Fast solvers develop the ability to enumerate valid visibility permutations quickly without writing them all out.