Pakar XV Sudoku
X menandakan sel yang berjumlah 10; V menandakan sel yang berjumlah 5. Semua pasangan bersebelahan yang tidak bertanda tidak boleh berjumlah 5 atau 10.
Pakar XV Sudoku. Rantai paksaan XV dan analisis kekangan negatif menyeluruh — teka-teki jumlah-pasangan paling sukar di laman.
8
7
9
5
1
9
1
8
5
7
1
7
9
4
6
5
4
9
1
3
4
6
4
8
Kesilapan
0/3
Skor
-
Masa
00:00
Kemajuan0%
Pakar · XV Sudoku
Cara Bermain XV Sudoku →
Apakah XV Sudoku?
Kesukaran
★★★☆☆
3/5
Jenis Kekangan
Hubungan Petak
Biasa Diberi
18–24
Purata Selesaikan (Pakar)
62 min
Teknik Penyelesaian untuk Tahap Pakar
| Teknik | Penerangan | Tahap |
|---|---|---|
| Negative Constraint | Where no X or V appears between adjacent cells, their sum is neither 10 nor 5. This eliminates (1,9), (2,8), (3,7), (4,6) for X and (1,4), (2,3) for V. | Pemula |
| Sum Pair Enumeration | List all digit pairs that sum to 10 (for X) or 5 (for V), then use row/column placement to identify which pair must occupy each marked pair. | Pemula |
| Marker Chain Logic | Multiple consecutive X and V markers in a row form a sum chain — enumerate valid assignments for the entire chain simultaneously. | Pertengahan |
| Box X-Interaction | An X pair forces both digits into specific positions within their shared box, constraining all remaining cells of that box. | Lanjutan |
Teknik untuk Dikuasai pada Pakar
- Teknik X-Wing — Expert XV solving alternates marker chains with fish — push the negative constraint until a digit holds two cells per row, then the X-Wing finishes the line.
- Swordfish technique — Dense marker chains leave mid digits clustered in matching columns; a Swordfish on 5 — the marker-immune digit — cracks many expert XV endgames.
Purata Masa Selesaikan mengikut Kesukaran
Mudah
8 min
Sederhana
18 min
Sukar
35 min
Pakar
62 min
Nak panduan lengkap peraturan, strategi, dan langkah penyelesaian?
Cara Bermain XV Sudoku →
Varian Berkaitan
Kropki Sudoku
Swaps sum markers for difference and ratio dots — the same marked-pair-plus-negative-constraint solving rhythm.
Sudoku Berturutan
A single-marker version of the same idea: every consecutive neighbour pair is flagged, and silence is information.
Sudoku Lebih Besar Daripada
Adjacent cells related by order instead of sums — chains of inequalities replace chains of X and V markers.
Soalan Lazim — Pakar Sudoku XV
Lebih soalan? Lihat penuh Panduan XV Sudoku.