Sukar Irregular Diagonal Sudoku
Rantau Jigsaw ditambah dua kekangan pepenjuru — setiap digit 1–9 mesti muncul sekali dalam setiap baris, lajur, rantau, dan pepenjuru. Percuma untuk dimain.
Sukar Irregular Diagonal Sudoku. Kurang digit diberi, bentuk rantau kompleks, dan kekangan diagonal ketat — tanda-pensel kerja diperlukan.
5
9
6
1
2
5
7
6
7
3
4
2
3
1
3
5
7
4
8
5
6
5
2
6
7
3
8
Apakah Irregular Diagonal Sudoku?
Kesukaran
★★★★☆
4/5
Jenis Kekangan
Combined: Irregular + Diagonal
Biasa Diberi
22–30
Purata Selesaikan (Sukar)
35 min
Teknik Penyelesaian untuk Tahap Sukar
| Teknik | Penerangan | Tahap |
|---|---|---|
| Map All 29 Units First | You have 9 rows + 9 columns + 9 irregular regions + 2 diagonals = 29 constraint units. Identify all irregular regions and both diagonals before starting. | Pemula |
| Diagonal–Region Intersection | Cells on a diagonal that also sit in the same irregular region create a powerful two-unit intersection — use both constraints simultaneously. | Pertengahan |
| Diagonal Pointing Pairs | If a digit on a diagonal is confined to one irregular region, eliminate it from all other cells of that region. | Pertengahan |
| Region Coloring for Diagonals | Trace which irregular regions each diagonal passes through. Regions with many diagonal cells are the most constrained. | Lanjutan |
| Chain Deduction Across Units | With 29 units, a forced digit in one unit often cascades through 3–4 other units. Track chains carefully to avoid errors. | Lanjutan |
Bersedia untuk ujian muktamad? Cuba Pakar Irregular Diagonal Sudoku — teka-teki paling sukar di Jom Main Sudoku.
Teknik untuk Dikuasai pada Sukar
- Hidden Pairs technique — With 29 overlapping houses, candidate counts drop unevenly — recount the diagonal cells after region eliminations, because that's where hard grids hide two digits in two cells.
- Teknik X-Wing — Rows and columns here are classic, so X-Wings work untouched — and any corner that lands on a diagonal exports its elimination into a fourth house.
Purata Masa Selesaikan mengikut Kesukaran
Mudah
8 min
Sederhana
18 min
Sukar
35 min
Pakar
65 min
Nak panduan lengkap peraturan, strategi, dan langkah penyelesaian?
Cara Bermain Irregular Diagonal Sudoku →
Varian Berkaitan
Sudoku Pepenjuru
Isolates the diagonal half of this variant — practise the two extra houses on a familiar 3×3 box layout.
Jigsaw Sudoku
Isolates the jigsaw half — pure region-shape reading without the diagonal bookkeeping.
Chaos Construction
If 29 visible houses feel comfortable, try deducing the nine jigsaw regions yourself as part of the solve.
Soalan Lazim — Sukar Sudoku Diagonal Tidak Sekata
Lebih soalan? Lihat penuh Panduan Irregular Diagonal Sudoku.