コンセクティブ数独
1
3
7
9
2
4
8
6
4
5
8
7
2
7
4
9
3
6
7
3
5
9
9
5
2
4
1
8
3
1
7
8
2
4
5
3
2
4
コンセクティブ数独の遊び方
標準の数独ルールが適用されます。隣接するセルの値の差がちょうど1である場合、それらの間に白いバーが表示されます。バーがない場合、2つのセルは連続していません。
完全ガイド →
セル間のバーは、それらの2つの数字が連続していることを意味します
コンセクティブ数独とは？
Consecutive Sudoku は、pairs of adjacent cells の間に bars をマークします。A bar は、それらの cells の two digits がちょうど 1 だけ異なることを意味します — それらは consecutive です。negative constraint (no bar = not consecutive) と組み合わせて使用すると、これは grid 全体のすべての adjacent pair に関する情報を提供し、強力な constraint network を作成します。
概要
| 制約タイプ | セルの関係 |
| 典型的な初期数字 | 18–24 |
| 難易度評価 | ★★★☆☆ 3/5 |
| 平均解答時間 — 簡単 | 7分 |
| 平均解答時間 — ミディアム | 16分 |
| 平均解答時間 — 難しい | 32分 |
| 平均解答時間 — エキスパート | 58分 |
コンセクティブ数独 の解き方
| テクニック | それが何をするか | レベル |
|---|---|---|
| Negative Constraint Power | Where no bar appears, the two cells are guaranteed non-consecutive. Every unmarked adjacent edge tells you something — treat absent bars as constraints. | 上級 |
| Bar Pair Enumeration | A bar means the digits differ by exactly 1. List all valid pairs: (1,2), (2,3), …, (8,9). Use row/column context to narrow which pair fits. | 上級 |
| Consecutive Chain | Three cells connected by two bars form a run of three consecutive digits (in some order). Enumerate the 7 possible runs: {1,2,3}, {2,3,4}, …, {7,8,9}. | 上級 |
| Isolated Digit Detection | A digit surrounded on all four sides by non-bar edges has no consecutive neighbour — highly constrained within a local area. | 上級 |
平均解答時間
簡単
7分
ミディアム
16分
難しい
32分
エキスパート
58分
よくある質問
Consecutive Sudokuとは何ですか？
Consecutive Sudoku is a variant where white bars appear between some adjacent cells. A white bar means those two cells hold digits that differ by exactly 1. Crucially, all consecutive adjacent pairs are marked — if there is no bar between two cells, they are guaranteed not to be consecutive.
How does the no-bar constraint work?
Every adjacent pair that is NOT consecutive has no bar. This negative information is extremely powerful — it eliminates all consecutive digit pairs from unmarked cell boundaries. Experienced players apply no-bar eliminations as aggressively as the positive bar clues.
What pairs count as consecutive?
Consecutive digits differ by exactly 1: 1&2, 2&3, 3&4, 4&5, 5&6, 6&7, 7&8, 8&9. The constraint applies to horizontally and vertically adjacent cells only — diagonal neighbours are not considered.
What is the best first move in Consecutive Sudoku?
Look for long chains of consecutive bars — a chain of four bars forces four consecutive digits in those five cells. Also, digits 1 and 9 can only be consecutive with 2 and 8 respectively, so any cell surrounded by no-bar neighbours cannot hold 1 or 9 unless those specific partners are available nearby.
Is Consecutive Sudoku harder than regular Sudoku?
At easy difficulty it is comparable to medium classic Sudoku. The bars and no-bars together provide a dense constraint web that makes early eliminations fast. Hard and expert puzzles become much more demanding as bar chains grow longer and interact with more rows, columns, and boxes.
How long does Consecutive Sudoku take to solve?
Easy puzzles take 8–18 minutes. Medium puzzles run 18–35 minutes. Hard puzzles average 35–65 minutes and expert puzzles often exceed 90 minutes. Applying both bar and no-bar logic simultaneously is the key to efficient solving at all levels.