Thermo Sudoku
2
6
9
4
5
4
1
2
5
6
7
8
7
9
8
6
2
7
8
5
3
6
2
1
7
3
9
1
8
8
9
2
1
3
4
1
5
6
Errores
0/3
Puntuación
-
Tiempo
00:00
Progreso0%
Fácil · Sudoku Termómetro
Cambia la dificultad arriba ↑
Cómo jugar al Sudoku Termómetro
Se aplican las reglas estándar del Sudoku. Regla adicional: los dígitos a lo largo de cada termómetro gris deben aumentar estrictamente desde el bulbo (extremo circular) hasta la punta. Un termómetro de 3 celdas podría ser 2,5,8 o 1,4,9 pero no 3,3,7 o 5,4,8.
Guía completa →
Los dígitos deben aumentar estrictamente a lo largo de las formas de termómetro
Thermo Sudoku Fácil
Thermo Sudoku Medio
Thermo Sudoku Difícil
Thermo Sudoku Experto
Qué es Thermo Sudoku?
Thermo Sudoku superpone formas de termómetro en la cuadrícula. Cada termómetro tiene un bulbo (círculo) en un extremo y una punta en el otro. Los dígitos a lo largo de cualquier termómetro deben aumentar estrictamente desde el bulbo hasta la punta. Combinado con las restricciones estándar de Sudoku, esto crea poderosas cadenas de deducciones: sabiendo que el bulbo es al menos 1 y la punta es como máximo 9, puedes calcular el rango de valores válidos para cada celda en el termómetro según su posición.
De un Vistazo
| Tipo de restricción | Restricciones de línea |
| Valores dados típicos | 20–28 |
| Valoración de dificultad | ★★★★☆ 4/5 |
| Tiempo de resolución prom. — Fácil | 10 min |
| Tiempo de resolución prom. — Medio | 22 min |
| Tiempo de resolución prom. — Difícil | 45 min |
| Tiempo de resolución prom. — Experto | 75 min |
Cómo resolver Thermo Sudoku
| Técnica | Qué hace | Nivel |
|---|---|---|
| Range Restriction from Length | A thermometer with N cells must use N strictly increasing distinct values. The bulb is at least 1 and the tip is at most 9, giving a calculable valid range for each cell. | Avanzado |
| Minimum/Maximum Bounding | The bulb value is ≤ 9 − (N − 1). The tip value is ≥ N. Apply these bounds immediately to prune all thermometer candidates. | Avanzado |
| Overlapping Thermometer Deduction | Two thermometers sharing a cell give tighter combined bounds than either alone. | Avanzado |
| Forcing Chains via Thermometers | When a value is forced into a thermometer cell, all cells closer to the bulb must be smaller and all closer to the tip must be larger. | Avanzado |
| Short vs. Long Thermometers | A 2-cell thermometer is simply a greater-than relationship. A 9-cell thermometer forces exactly 1–9 in order. | Avanzado |
Tiempos de Resolución Promedio
Fácil
10 minutos
Medio
22 minutos
Difícil
45 minutos
Experto
75 minutos
Preguntas frecuentes
¿Qué es Thermo Sudoku?
Thermo Sudoku is a variant where thermometer shapes are drawn on the grid. Each thermometer has a bulb (rounded end) and extends through several cells toward a tip. The digits must strictly increase from the bulb to the tip — so every cell along a thermometer must hold a larger digit than the one before it.
¿Cómo leo las pistas de termómetro?
The bulb is the starting point and must hold the smallest digit on that thermometer. Each subsequent cell must be strictly larger. For example, a 3-cell thermometer starting at the bulb means the bulb holds at most 7 (since two larger digits must follow). A 5-cell thermometer means the bulb holds at most 5.
Can digits repeat on a thermometer?
No. Because digits must strictly increase, no digit can appear twice on the same thermometer. A 4-cell thermometer uses four different increasing digits. Combined with standard Sudoku uniqueness rules, thermometers create very tight constraints on every cell they pass through.
Is Thermo Sudoku hard to learn?
The core rule is simple — digits increase from bulb to tip. Beginners can start solving after understanding just that one constraint. What makes higher difficulties challenging is tracking minimum and maximum values for each thermometer cell simultaneously across many overlapping thermometers.
What is the best first move in Thermo Sudoku?
Look for long thermometers. A 7-cell thermometer can only start at 1 and end at 7, 8, or 9 — drastically limiting all seven cells. Also check for thermometers where the bulb or tip overlaps with a constrained row, column, or box, as this often pins the starting digit immediately.
How long does Thermo Sudoku take to solve?
Easy puzzles take 8–15 minutes. Medium puzzles typically run 15–30 minutes. Hard puzzles average 35–60 minutes and expert puzzles can exceed 90 minutes. The difficulty scales sharply as thermometer lengths decrease and the number of simultaneously active constraints increases.