4×4または6×6のグリッド — 初心者や子供に最適
ミニ数独とは？
ミニ数独はより小さなグリッドを使用します：人気の4×4バージョンは4つの2×2ボックスで数字1〜4を使用し、6×6バージョンは6つの2×3ボックスで数字1〜6を使用します。ルールは標準の9×9数独と同じですが、縮小されています。ミニ数独は、子供に数独ロジックを紹介するため、クイックパズルセッションのため、またはより大きなグリッドに取り組む前のウォームアップとして理想的です。
概要
| 制約タイプ | Smaller Grid |
| 典型的な初期数字 | 4–8 |
| 難易度評価 | ★☆☆☆☆ 1/5 |
| 平均解答時間 — 簡単 | 1分 |
| 平均解答時間 — ミディアム | 2分 |
| 平均解答時間 — 難しい | 4分 |
| 平均解答時間 — エキスパート | 6分 |
ミニ数独 の解き方
| テクニック | それが何をするか | レベル |
|---|---|---|
| Direct Scanning | With only 16 cells and digits 1–4, scan each row, column, and 2×2 box for missing digits. Most easy puzzles resolve in a single pass. | 上級 |
| Single Candidate | If only one cell in a row, column, or box can hold a particular digit, place it immediately. | 上級 |
| Box–Row/Column Interaction | Each 2×2 box shares all four cells with exactly two rows and two columns. Every box placement simultaneously restricts two full rows and two full columns. | 上級 |
平均解答時間
簡単
1分
ミディアム
2分
難しい
4分
エキスパート
6分
よくある質問
Mini Sudokuとは何ですか？
Mini Sudoku is a compact 4×4 variant of classic Sudoku. The grid uses only the digits 1–4, and every row, column, and 2×2 box must contain each digit exactly once. It follows all the same logic as standard Sudoku but at a fraction of the scale.
How is Mini Sudoku different from regular Sudoku?
Mini Sudoku uses a 4×4 grid with digits 1–4 instead of a 9×9 grid with digits 1–9. There are 4 rows, 4 columns, and 4 boxes (each 2×2). Solving techniques are identical but the puzzles resolve much faster — typical solve times are under 5 minutes even for beginners.
Is Mini Sudoku good for beginners?
Excellent for beginners. Mini Sudoku teaches the core Sudoku logic — elimination, uniqueness, scanning — in a format that's quick to complete and easy to check. It builds the mental habits needed for larger grids without the time commitment.
Can all standard Sudoku techniques apply to Mini Sudoku?
Yes, but only the simplest techniques are needed for most Mini puzzles: naked singles and hidden singles. More advanced techniques like naked pairs or X-Wings exist theoretically but rarely appear in 4×4 grids. Expert Mini puzzles can require hidden pairs.
Is Mini Sudoku just for children?
Not at all. Mini Sudoku is used by puzzle designers, schools, speed-solving enthusiasts, and anyone who wants a quick but satisfying logic puzzle. Expert Mini Sudoku puzzles with minimal given digits can challenge experienced solvers despite the small grid size.
How long does Mini Sudoku take to solve?
Easy puzzles take 1–3 minutes. Medium puzzles take 3–6 minutes. Hard and expert puzzles can take 5–12 minutes even for experienced solvers. Mini Sudoku is ideal when you want a complete puzzle experience in a short time.