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Suguru

Hard — 10×10

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Play Hard Suguru — ThePuzzleLabs

Try this Hard Suguru puzzle on ThePuzzleLabs.

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Classic

How to Play Suguru

Rules

  • The grid is divided into cages (groups of cells outlined in bold).
  • Fill each cage of size N with the digits 1 to N.
  • No two identical digits may be adjacent — not even diagonally.

Keyboard Shortcuts

  • 1-7 Place digit
  • Delete Erase cell
  • ↑↓←→ Navigate
  • N Toggle notes
  • U Undo
  • H Hint

Solve This Puzzle?

This will fill in the complete solution. The puzzle will be marked as “solved with reveal” rather than self-solved.

About hard suguru

Hard suguru is a 10×10 grid with only about 25% of cells given. The cage network is denser, and straightforward singles won't carry you through.

Cross-cage deduction becomes essential. Where cages share boundaries, placing a digit in one cage eliminates it from adjacent cells in other cages. These eliminations cascade: one placement can trigger forced moves three or four cages away.

Maintain full candidate lists. When you eliminate a candidate, check the affected cell's cage for new hidden singles. Systematic re-checking is what separates solvers who progress from those who stall.