Pakar Palindrome Sudoku
Digit di sepanjang setiap garis bertanda dibaca sama ke hadapan dan ke belakang. Setiap palindrom mencerminkan logiknya sendiri.
Pakar Sudoku Palindrom. Teka-teki paling sukar di laman — rangkaian palindrom padat di mana setiap penempatan memerlukan penalaran pelbagai langkah tepat.
2
4
1
7
4
6
3
7
5
6
2
4
6
3
8
5
4
3
6
1
2
7
7
Apakah Sudoku Palindrom?
Kesukaran
★★★☆☆
3/5
Jenis Kekangan
Kekangan Garis
Biasa Diberi
20–28
Purata Selesaikan (Pakar)
58 min
Teknik Penyelesaian untuk Tahap Pakar
| Teknik | Penerangan | Tahap |
|---|---|---|
| Mirror Pair Identification | In a palindrome of length L, cell i and cell L+1−i must share the same digit. Identify all mirror pairs before solving. | Pemula |
| Centre Cell Freedom | The central cell of an odd-length palindrome has no mirror constraint — it is only restricted by standard row/column/box rules. | Pemula |
| Mirror Propagation | Once one cell of a mirror pair is determined, immediately set its partner to the same value. | Pertengahan |
| Multi-Palindrome Intersection | If two palindromes share a cell, that cell must satisfy both palindrome relationships simultaneously. | Lanjutan |
Teknik untuk Dikuasai pada Pakar
- Teknik X-Wing — Expert palindrome endgames chain mirror-imported eliminations into fish: prune through the mirrors first, then the X-Wing geometry appears two boxes away.
- Swordfish technique — Long mirrored lines synchronise candidate patterns between far-apart rows, exactly the repetition a Swordfish needs — expert grids are constructed around this echo.
Purata Masa Selesaikan mengikut Kesukaran
Mudah
7 min
Sederhana
16 min
Sukar
32 min
Pakar
58 min
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Varian Berkaitan
Sudoku Renban
Both put structure on a drawn line's digit set — renban demands a consecutive run where palindromes demand mirror symmetry.
Bisikan Jerman
Trades mirrored repetition for forced separation: adjacent line digits must differ by 5 or more.
Between Lines Sudoku
Endpoint-anchored lines where position on the line carries meaning, just as it does for palindrome mirror pairs.
Soalan Lazim — Pakar Sudoku Palindrom
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