Spreadsheet Sudoku

A reconciliation worksheet — fill it so the numbers balance.

• 1Fill the 9×9 block so every row, column and 3×3 box contains 1–9 with no repeats.
• 2Click a cell and type 1–9. Backspace or Delete clears it.
• 3Press N for Notes mode to pencil in candidates — they auto-clear as you place numbers.
• 4You get 3 mistakes before the audit fails. Pick a difficulty and beat the clock.
• 5Boss key: tap Esc three times (or Ctrl+Shift+B) to instantly hide the game as a spreadsheet — the same keys bring it back.