Difficile 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.
Difficile Irregular Diagonal Sudoku. Meno dati, forme di regione complesse e vincoli diagonali stretti — a più passaggi segno-a-matita lavoro richiesto.
5
9
6
1
2
5
7
6
7
3
4
2
3
1
3
5
7
4
8
5
6
5
2
6
7
3
8
Cos'è Irregular Diagonal Sudoku?
Difficoltà
★★★★☆
4/5
Tipo di Vincolo
Combined: Irregular + Diagonal
Dati Tipici
22–30
Media. Risoluzione (Difficile)
35 min
Tecniche di risoluzione per il livello Difficile
| 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 |
Pronto per la prova definitiva? Prova Esperto Irregular Diagonal Sudoku — i puzzle più difficili su Gioca a Sudoku.
Tecniche da padroneggiare a Difficile
- Hidden Pairs technique — With 29 overlapping houses, candidate counts drop unevenly — recount the diagonal cells after region eliminations, because that's where hard grids hide two digits in two cells.
- Tecnica X-Wing — Rows and columns here are classic, so X-Wings work untouched — and any corner that lands on a diagonal exports its elimination into a fourth house.
Tempo Medio di Risoluzione per Difficoltà
Facile
8 min
Medio
18 min
Difficile
35 min
Esperto
65 min
Vuoi una guida completa di regole, strategie e passaggi di risoluzione?
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 — Difficile Irregular Diagonal Sudoku
Altre domande? Vedi la guida completa Guida all'Irregular Diagonal Sudoku.