Pakar Arrow Sudoku
Digit di sepanjang setiap anak panah mesti berjumlah nombor dalam bulatan. Anak panah dan peraturan Sudoku klasik digabungkan untuk logik tulen.
Pakar Arrow Sudoku. Rantai paksaan pelbagai-anak panah dan penalaran pariti diperlukan. Teka-teki anak panah paling sukar di laman — setiap digit boleh dibuktikan secara logik.
3
8
2
3
6
4
4
6
3
7
8
1
4
6
4
5
5
1
5
9
7
5
6
9
2
Apakah Arrow Sudoku?
Kesukaran
★★★★☆
4/5
Jenis Kekangan
Kekangan Garis
Biasa Diberi
20–26
Purata Selesaikan (Pakar)
80 min
Teknik Penyelesaian untuk Tahap Pakar
| Teknik | Penerangan | Tahap |
|---|---|---|
| Arrow Sum Bounding | The circle digit equals the sum of all arrow shaft cells. A 3-cell arrow with circle 5 means the three shaft cells average under 2 — severely constraining options. | Pemula |
| Max/Min Arrow Analysis | The maximum sum of N cells is 9+8+7+…; the minimum is 1+2+3+…. If the circle digit falls outside these bounds, a constraint error exists. | Pertengahan |
| Bifurcation on Short Arrows | For 2-cell arrows with a small circle (e.g., 3), only (1,2) or (2,1) works — enumerate cases to find forced placements quickly. | Pemula |
| Arrow–Region Interaction | Arrow cells sharing a box or row with the circle create indirect constraints — combine the sum equation with standard Sudoku uniqueness. | Pertengahan |
| Repeating Digits on Arrows | Arrow shaft cells can repeat digits (unlike Killer cages). Factor this in when enumerating possible sums. | Lanjutan |
Teknik untuk Dikuasai pada Pakar
- Teknik X-Wing — Expert arrow grids interlock multiple sums so no single arrow resolves — fish on the high digits that all circles compete for, then feed eliminations back into the sums.
- Swordfish technique — When three arrows cross the same three columns, their shared low digits form Swordfish geometry — the intended break-in for many expert arrow endgames.
Purata Masa Selesaikan mengikut Kesukaran
Mudah
12 min
Sederhana
25 min
Sukar
50 min
Pakar
80 min
Nak panduan lengkap peraturan, strategi, dan langkah penyelesaian?
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Varian Berkaitan
Thermo Sudoku
Arrows demand sums along a line; thermometers demand growth along one — both reward tracking minimums and maximums cell by cell.
Killer Sudoku
The cage-based cousin of arrow arithmetic, adding a no-repeat rule and the powerful 45 trick to your sum toolkit.
Sudoku Renban
Trades arithmetic for set logic on the same drawn-line canvas: line digits must form a consecutive run.
Soalan Lazim — Pakar Sudoku Anak Panah
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