Sukar Odd/Even Sudoku
Sel berlorek mesti mengandungi digit ganjil; sel tidak berlorek mengandungi digit genap. Petunjuk pariti memotong calon separuh dan menjadikan setiap penempatan penting. Percuma dalam talian.
Sukar Sudoku Ganjil/Genap. Tanda pariti jarang dan kurang beri — menggabungkan logik pariti dengan pasangan menunjuk dan set tersembunyi diperlukan.
5
6
9
2
1
8
1
8
6
3
2
7
6
9
3
8
5
7
1
6
5
8
2
4
3
5
7
Apakah Sudoku Ganjil / Genap?
Kesukaran
★★★☆☆
3/5
Jenis Kekangan
Hubungan Petak
Biasa Diberi
20–26
Purata Selesaikan (Sukar)
28 min
Teknik Penyelesaian untuk Tahap Sukar
| Teknik | Penerangan | Tahap |
|---|---|---|
| Immediate Candidate Halving | Marked cells instantly reduce to 5 odd candidates (1,3,5,7,9) or 4 even candidates (2,4,6,8). Apply this before any other technique. | Pemula |
| Parity Counting per Box | Count how many odd-marked and even-marked cells are in each box to verify the digit distribution is achievable. | Pertengahan |
| Parity-Chain Elimination | If a row must contain exactly four even digits, and three positions are already even-marked, the fourth must come from the remaining unmarked cells. | Pertengahan |
| Parity X-Wing | When parity restricts a digit to exactly two rows and two columns, form a parity-based X-Wing for cross-elimination. | Lanjutan |
Bersedia untuk ujian muktamad? Cuba Pakar Sudoku Ganjil / Genap — teka-teki paling sukar di Jom Main Sudoku.
Teknik untuk Dikuasai pada Sukar
- Hidden Pairs technique — Restrict your pair hunt to same-parity cells: in hard odd/even grids, combinations like {1,9} or {3,7} hide inside the odd-marked cells of a single box.
- Teknik X-Wing — Parity slashes each digit's legal positions, so X-Wings on odd digits form earlier here than in classic grids — check 5 first, it has the fewest parity-legal homes.
Purata Masa Selesaikan mengikut Kesukaran
Mudah
6 min
Sederhana
14 min
Sukar
28 min
Pakar
50 min
Nak panduan lengkap peraturan, strategi, dan langkah penyelesaian?
Cara Bermain Sudoku Ganjil / Genap →
Varian Berkaitan
Sudoku Lebih Besar Daripada
Builds on value reasoning — inequality chains bound cells from both ends much like parity halves them.
Kropki Sudoku
Moves from cell properties to cell relationships: dots encode consecutive and doubled neighbours.
Sudoku Berturutan
Neighbour-difference logic with a strong negative constraint — a natural next step from parity counting.
Soalan Lazim — Sukar Sudoku Ganjil/Genap
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