불규칙 대각선 스도쿠
9
4
6
5
6
2
6
8
2
9
1
4
7
4
8
5
4
2
9
6
1
1
3
8
3
5
2
8
1
7
1
8
3
7
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9
1
3
불규칙 대각선 스도쿠 플레이 방법
각 행, 열, 색상 영역 및 두 주 대각선(호박색으로 강조)은 1–9를 각각 정확히 한 번씩 포함해야 합니다. 영역은 표준 3×3 박스를 대체합니다.
전체 가이드 →
jigsaw 영역과 main diagonal 제약을 결합합니다.
불규칙 대각선 스도쿠이란 무엇인가요?
Irregular Diagonal Sudoku는 두 variant types을 combines합니다: Jigsaw Sudoku의 irregular jigsaw regions과 Diagonal Sudoku의 diagonal constraints. Both main diagonals과 all irregular regions은 1–9를 포함해야 합니다. 이 combination은 highly constrained puzzles과 unique solving logic을 creates합니다.
한눈에
| 제약 유형 | Combined: Irregular + Diagonal |
| 일반적인 주어진 숫자 | 22–30 |
| 난이도 등급 | ★★★★☆ 4/5 |
| 평균 풀이 시간 — 쉬움 | 8 분 |
| 평균 풀이 시간 — 중급 | 18 분 |
| 평균 풀이 시간 — 어려움 | 35 분 |
| 평균 풀이 시간 — 전문가 | 65 분 |
불규칙 대각선 스도쿠 푸는 방법
| 기법 | 기능 | 레벨 |
|---|---|---|
| Map All 29 Units First | You have 9 rows + 9 columns + 9 irregular regions + 2 diagonals = 29 constraint units. Identify all irregular regions and both diagonals before starting. | 고급 |
| Diagonal–Region Intersection | Cells on a diagonal that also sit in the same irregular region create a powerful two-unit intersection — use both constraints simultaneously. | 고급 |
| Diagonal Pointing Pairs | If a digit on a diagonal is confined to one irregular region, eliminate it from all other cells of that region. | 고급 |
| Region Coloring for Diagonals | Trace which irregular regions each diagonal passes through. Regions with many diagonal cells are the most constrained. | 고급 |
| Chain Deduction Across Units | With 29 units, a forced digit in one unit often cascades through 3–4 other units. Track chains carefully to avoid errors. | 고급 |
평균 풀이 시간
쉬움
8 분
중급
18 분
어려움
35 분
전문가
65 분
자주 묻는 질문
Irregular Diagonal Sudoku란 무엇인가요?
Irregular Diagonal Sudoku combines two variants: irregular jigsaw-shaped regions replace the standard 3×3 boxes, and both main diagonals of the 9×9 grid must each contain 1–9 exactly once. Cells on a diagonal therefore belong to four groups: row, column, jigsaw region, and diagonal. It is one of the most constraint-dense variants available.
How many constraint groups does a diagonal cell belong to?
A cell on one of the main diagonals belongs to four groups simultaneously: its row, its column, its jigsaw region, and its diagonal. The centre cell belongs to five groups — both diagonals, plus row, column, and region. This extreme constraint density makes every placement very powerful.
Is Irregular Diagonal Sudoku the hardest variant?
It is among the most constrained variants. The combination of irregular regions and diagonal constraints means almost every cell interacts with an unusually large portion of the grid. Expert puzzles in this variant are among the most demanding logic puzzles on the site.
What order should I tackle the constraints?
Start with the diagonals, since diagonal cells carry the most constraints. Find hidden singles on each diagonal first. Then scan the jigsaw regions, keeping diagonal eliminations active. Update all four constraint groups — row, column, region, diagonal — after every single placement.
Can I use standard Sudoku techniques?
Yes — all standard techniques apply. You simply treat each diagonal as an additional house alongside the nine rows, nine columns, and nine jigsaw regions. The diagonal pointing pair (where a digit in a diagonal is confined to one row or column) is a particularly powerful technique unique to diagonal variants.
How long does Irregular Diagonal Sudoku take to solve?
Easy puzzles take 10–20 minutes. Medium puzzles run 20–40 minutes. Hard puzzles average 40–75 minutes and expert puzzles often exceed 90 minutes. The combined constraint density means that even easy puzzles require tracking four constraint groups simultaneously.