Dodam Sudoku: Four Difficulty Levels and a Fresh Daily Puzzle

Dodam Sudoku is a small game from Studio SOIO, the team behind SAJUBY, starring Dodam, the little guide you may have met on SAJUBY.

The rule fits in one line: every row, every column and every 3×3 box holds the numbers 1 to 9 exactly once. The fun is in the last cell, when the whole board clicks into place.

What is in the game

• Four difficulty levels, from relaxed to properly tricky.
• A daily puzzle that changes every day.
• Pencil notes for writing candidate numbers in a cell.
• Hearts: a wrong number costs a heart, so guessing has a price.

Two habits for harder boards

1. Fill the forced cells first. Look for rows, columns or boxes that already have seven or eight numbers. The missing ones are easy to spot.
2. Use notes instead of memory. Write the candidates down. When a cell is left with a single candidate, it is solved.

Start on the easiest level for a few boards; the patterns you learn there are the same ones the hard levels use.