Esperto Sudoku Diagonale Irregolare
Regioni Jigsaw più due vincoli diagonali — ogni cifra 1–9 deve apparire una volta in ogni riga, colonna, regione e diagonale. Gratuito da giocare.
Esperto Irregular Diagonal Sudoku. I puzzle a variante combinata più difficili del sito — ogni passo concatena logica diagonale, di regione, di riga e di colonna simultaneamente.
9
2
8
7
1
4
9
3
2
6
1
6
4
1
2
7
5
6
7
4
8
9
2
1
7
8
Cos'è Irregular Diagonal Sudoku?
Difficoltà
★★★★☆
4/5
Tipo di Vincolo
Combined: Irregular + Diagonal
Dati Tipici
22–30
Media. Risoluzione (Esperto)
65 min
Tecniche di risoluzione per il livello Esperto
| Tecnica | Descrizione | Livello |
|---|---|---|
| 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. | Principiante |
| 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. | Intermedio |
| Diagonal Pointing Pairs | If a digit on a diagonal is confined to one irregular region, eliminate it from all other cells of that region. | Intermedio |
| Region Coloring for Diagonals | Trace which irregular regions each diagonal passes through. Regions with many diagonal cells are the most constrained. | Avanzato |
| 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. | Avanzato |
Tecniche da padroneggiare a Esperto
- Tecnica X-Wing — Expert grids in this combined variant stall region logic deliberately — fall back to line-based fish, then re-run diagonal and region scans after each elimination.
- Swordfish technique — A Swordfish whose columns cross both diagonals propagates into the densest cells of the grid — expert irregular-diagonal endgames are sequenced around this cascade.
Tempo Medio di Risoluzione per Difficoltà
Facile
8 min
Medio
18 min
Difficile
35 min
Esperto
65 min
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Come Giocare a Irregular Diagonal Sudoku →
Varianti correlate
Diagonal Sudoku
Isolates the diagonal half of this variant — practise the two extra houses on a familiar 3×3 box layout.
Jigsaw Sudoku
Isolates the jigsaw half — pure region-shape reading without the diagonal bookkeeping.
Chaos Construction
If 29 visible houses feel comfortable, try deducing the nine jigsaw regions yourself as part of the solve.
Domande Frequenti — Esperto Irregular Diagonal Sudoku
Altre domande? Vedi la guida completa Guida all'Irregular Diagonal Sudoku.