Sukar Irregular Sudoku
Rantau berbentuk Jigsaw menggantikan kotak 3×3. Baris, lajur, dan rantau tidak sekata mesti masing-masing mengandungi 1–9. Tiada muat turun, tiada log masuk.
Sukar Irregular Sudoku. Bentuk rantau kompleks dengan kurang digit diberi — jangkakan pasangan menunjuk merentas rantau, set tersembunyi, dan tanda-pensel kerja.
3
1
5
5
6
8
2
1
4
9
5
6
4
8
9
6
7
8
9
1
2
8
6
9
7
5
2
Apakah Jigsaw Sudoku?
Kesukaran
★★★☆☆
3/5
Jenis Kekangan
Irregular Regions
Biasa Diberi
24–30
Purata Selesaikan (Sukar)
32 min
Teknik Penyelesaian untuk Tahap Sukar
| Teknik | Penerangan | Tahap |
|---|---|---|
| Region Identification First | Identify all 9 irregular regions by their colour coding before solving. Region membership determines the third constraint unit for each cell. | Pemula |
| 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. | Pertengahan |
| 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. | Pertengahan |
| Irregular Naked Subsets | Apply naked pairs and triples within each irregular region exactly as you would within standard 3×3 boxes. | Lanjutan |
Bersedia untuk ujian muktamad? Cuba Pakar Jigsaw Sudoku — teka-teki paling sukar di Jom Main Sudoku.
Teknik untuk Dikuasai pada Sukar
- Hidden Pairs technique — Irregular region geometry hides pairs in cells that share a region but no row or column — deliberately recount candidates region-by-region or you will never see them.
- Teknik X-Wing — Rows and columns are unchanged by jigsaw regions, so classic X-Wings still work — and they're often the only move left when region logic stalls in hard puzzles.
Purata Masa Selesaikan mengikut Kesukaran
Mudah
7 min
Sederhana
16 min
Sukar
32 min
Pakar
60 min
Nak panduan lengkap peraturan, strategi, dan langkah penyelesaian?
Cara Bermain Jigsaw Sudoku →
Varian Berkaitan
Irregular Diagonal Sudoku
Your jigsaw region-reading skills plus two diagonal houses — the natural step up in constraint density.
Chaos Construction
Jigsaw solving where the regions themselves are hidden — you deduce the borders while you place the digits.
Sudoku Samurai
Scales the geometry challenge a different way: five overlapping grids whose shared boxes pass information between them.
Soalan Lazim — Sukar Sudoku Tidak Sekata
Lebih soalan? Lihat penuh Panduan Irregular Sudoku.