Jigsaw Sudoku
7
2
6
5
9
8
5
1
3
7
2
4
9
7
2
3
9
3
6
6
2
1
9
8
4
6
9
3
5
2
7
9
2
3
5
2
1
6
Erros
0/3
Pontuação
-
Tempo
00:00
Progresso0%
Fácil · Jigsaw Sudoku
Muda a dificuldade acima ↑
Como jogar Jigsaw Sudoku
As regras padrão de linha e coluna aplicam-se. Cada região colorida (delimitada por um contorno grosso) também deve conter 1–9 exatamente uma vez. As regiões substituem os blocos 3×3 padrão.
Guia completo →
Regiões irregulares em forma de puzzle substituem as caixas padrão 3×3
Jigsaw Sudoku Fácil
Jigsaw Sudoku Médio
Jigsaw Sudoku Difícil
Jigsaw Sudoku Especialista
O que é Jigsaw Sudoku?
Jigsaw Sudoku (também chamado Irregular Sudoku) substitui as nove caixas 3×3 padrão por nove regiões irregulares em forma de jigsaw. Cada região ainda contém nove células e deve ainda conter cada dígito 1–9 exatamente uma vez. As regras de linhas e colunas permanecem inalteradas. As formas irregulares podem criar caminhos de resolução muito diferentes do Sudoku clássico.
À Primeira Vista
| Tipo de restrição | Regiões Irregulares |
| Pistas típicas | 24–30 |
| Classificação de dificuldade | ★★★☆☆ 3/5 |
| Tempo médio de resolução — Fácil | 7 min |
| Tempo médio de resolução — Médio | 16 min |
| Tempo médio de resolução — Difícil | 32 min |
| Tempo médio de resolução — Especialista | 60 min |
Como resolver Jigsaw Sudoku
| Técnica | O que faz | Nível |
|---|---|---|
| Region Identification First | Identify all 9 irregular regions by their colour coding before solving. Region membership determines the third constraint unit for each cell. | Avançado |
| Region Counting | Each region must contain 1–9. Counting completed rows and columns reveals how many of each digit can still fit in each region. | Avançado |
| Region–Row/Column Intersection | If a digit within a region is confined to one row or column, eliminate it from the rest of that row or column. | Avançado |
| Irregular Naked Subsets | Apply naked pairs and triples within each irregular region exactly as you would within standard 3×3 boxes. | Avançado |
Tempos Médios de Resolução
Fácil
7 min
Médio
16 min
Difícil
32 min
Especialista
60 min
Perguntas Frequentes
O que é o Irregular Sudoku?
Irregular Sudoku (also called Jigsaw Sudoku) replaces the standard nine 3×3 boxes with nine irregularly-shaped regions of exactly nine cells each. Every row, column, and irregular region must still contain the digits 1–9 exactly once. The regions are colour-coded or outlined with thick borders.
How do I identify the irregular regions?
Each region is shaded in a distinct colour or enclosed by thicker lines. Count the cells in each region to confirm it has exactly nine. The regions are always connected — no region is split across the grid — but they can have any shape as long as they tile the full 9×9 grid.
Is solving Irregular Sudoku different from classic Sudoku?
The logic is identical — you use the same techniques (naked pairs, hidden singles, pointing pairs, etc.) — but the non-rectangular region shapes create different constraint interactions. A region that snakes diagonally creates eliminations in many different rows and columns simultaneously, which can feel unintuitive at first.
Is Irregular Sudoku harder than regular Sudoku?
At easy difficulty, Irregular Sudoku can be harder because the region shapes are less predictable than 3×3 boxes. At higher difficulties, experienced Sudoku players often find it comparably challenging — the same techniques apply, just with different geometry.
What is the best strategy for Irregular Sudoku?
Trace each region carefully before starting — understand its shape and which rows and columns it spans. Regions that span many different rows and columns create more powerful constraints. Focus on regions with the most given digits first, then use pointing pairs to transfer information between regions and lines.
How long does Irregular Sudoku take to solve?
Easy puzzles take 8–20 minutes. Medium puzzles run 20–40 minutes. Hard and expert puzzles can take 45–90 minutes. Familiarity with jigsaw region shapes speeds up solving considerably after a few practice puzzles.