Puzzle Completion
Volume 2
The interactive edition for ages 7–10 (Year 2 to Year 5): 160 puzzles moving from 3 × 3 to 4 × 4 grids with abstract designs, helper pages, practice and a flipped-and-turned challenge. Tap a piece and it drops into the gap; a wrong piece tells you which trick it is — flipped, turned, shifted or from another square. Same puzzles as the printed book.
