🧩 Jigsaw Sudoku

📖 How to play Jigsaw Sudoku

1. The sudoku rules apply: 1 through 9 with no repeats in each row and each column.
2. The difference: instead of 3x3 boxes, there are 9 irregularly shaped regions (bounded by the thick border) that must also contain 1 through 9 with no repeats.
3. Tap an empty square and choose the number. Each puzzle has a unique solution.

💡 Tip: pay attention to the narrower, elongated regions; they tend to share many rows or columns and get solved first.

✏️ Notes mode: press the ✏️ button on the keypad (or the N key) to jot down candidates in the empty cells.